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"Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications" - Updated

Monday, April 25, 2005 7:30 AM
A very common but weird error we get when trying to create / open asp.net applications using visual studio.net is "Visual Studio .NET has detected that the specified Web Server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications or services." 
 
This error occurs primarily due to following reasons
 
1. IIS installed after Visual Studio .NET is installed.
2. ASPNET Account removed / doesnt have sufficient permissions.
3. Script Mappings not updated in the IIS
4. Proxy Settings

Resolution 1
 
The resolution for the first 3 reasons is simple. Reinstall

Version Numbers for other versions

.NET Framework 2.0 - v2.0.50727 for Visual Studio 2005 (Released Version)

.NET Framework 1.0 - v1.0.3705 for Visual Studio .NET 2002

Resolution 2

The other resolution for proxy settings is as follows:-

1. Open Internet Explorer

2. Go to Tools - Internet Options - Connections - LAN Settings - Advanced

3. Under “Do not use Proxy server for addresses beginning with“, enter localhost or your local IP starting number in the Text Area.

4. Clik Ok 3 times to exit.

5. Restart Visual Studio .NET and you should be able to create ASP.NET Applications.

Feel free to write back or post alternative solutions in the comments section, if the above solutions doesnt solve the issue.

Thanks.

Cheers,

Harish.

Note: I thank all of you who have expressed their gratitude and thanks for this solution.  I have updated this article with the second set of steps involving proxy settings.

 

the aspnet user account.  To do that, type the following from your command prompt:-
 
%windir%\Microsoft.NET\Framework\v1.1.4322\aspnet_regiis.exe -i

the above is based on .net 1.1 version (Visual Studio .NET 2003). For other versions, just change the version number.

Feedback

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"


Well I'm just wanna show my gratitude...
Thanks, You saved my night..

5/11/2005 8:20 PM | Tommy Falth

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

And I was just about to uninstall the framework and IIS and reinstall everything...this was much easier! Great tip. 5/15/2005 1:21 AM | Matt

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks, it worked. 5/15/2005 4:34 PM | DredWes

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks... your instructions were right on! This was to be my Hello World program and I couldn't even set up my environment... what a mess! 5/18/2005 12:08 AM | Jason M.

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks! this helped me a lot. 5/19/2005 5:47 PM | Subir

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I echo the many thanks of other readers. It worked for me first time. 5/24/2005 6:08 AM | TCM

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

That usually works..But this time, I also have an 'Unexpected error 0x8ffe2740 occurred' when I try to start the 'default web site' in IIS...And it doesn't work for .NET either, ofcourse. I don't think I'll be able to get out of this one, will I?..Anyone?..Help! 5/24/2005 7:12 PM | Sebi

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

ok, me again..i just restarted and it worked after all..weird..thanks! 5/24/2005 7:27 PM | sebi

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I didn't need help, but thanks anyway 5/25/2005 4:06 PM | Phocay

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

U are the bomb!! Thanks a million~! 5/26/2005 7:49 PM | Nick

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Wonderfull ........ IT WORKS !!!!!!!!!
this is what i was looking for.

Many thnxs 6/1/2005 9:53 PM | Frank

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Yeah, that was a great help indeed. Saved too much of time. Thanks friend. :-) 6/2/2005 6:47 AM | Raj

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Gooood ..
Thanks !!!

This is what i was looking for since long .

Thanks .
6/6/2005 11:58 AM | Ambesh

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks! You would think Microsoft's web site would have had this quick fix! 6/7/2005 12:27 AM | Kathleen

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

THANKS A LOT!!!
It had given me sleepless night and now it worked
Thanks again

Kiran 6/7/2005 7:53 AM | Kiran

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks. You also saved me a whack of time and frustration. I agree that microsoft should put this solution in their KB. 6/7/2005 6:47 PM | Alexei

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Tremendous! thanks for the post on this :) 6/7/2005 9:00 PM | Ben

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Quick search, find and fix! Thanks a lot for posting this. 6/8/2005 12:42 AM | Hanna

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thank you so much! Thanks for taking the time to post this for us. 6/9/2005 5:43 PM | Jherrera

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

beautiful.... 6/10/2005 5:28 PM | james

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thank you very much! 6/10/2005 7:51 PM | Farstrider

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks... Great work 6/13/2005 7:40 AM | Kapil

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

unbelieveable...i was wondering if i would ever find the answer to this...your post was like a god send...thank you so much....and thanks to GOOGLE.... 6/15/2005 5:38 PM | Shaheer

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

unbelieveable...i was wondering if i would ever find the answer to this...your post was like a god send...thank you so much....and thanks to GOOGLE.... 6/15/2005 5:38 PM | Shaheer

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

thanks a mill! 6/16/2005 9:56 AM | Andrew

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

You Rock! I was going nuts trying to figure this out! 6/16/2005 9:19 PM | csdority

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

GRACIASSSSSSSSSSSSSS 6/16/2005 11:47 PM | daniel

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

All Hail Ranganh. Worked. Wonder why this wasn't in the brochure? 6/17/2005 7:58 PM | Perry

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

You're the man! 6/18/2005 6:52 PM | Joe Olsen

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Cheers geezer! 6/18/2005 11:38 PM | Chris

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

wow. what a life saver. you are indeed the man. you'd think microsoft would help you with that? yeah right! thanks a lot. saved lots of trouble! 6/19/2005 10:23 PM | Justin

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Posted as 1 of 4 solutions on technet, but they didn't tell me the path - you did - thanks heaps. 6/21/2005 8:24 PM | Mee2

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

muchas gracias, espero eso me funcione... 6/21/2005 8:34 PM | Luis Aneudy Heredia

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

You ROCK! Thanks for the Brainpower! 6/21/2005 9:28 PM | mcron

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thank you, Thank you, Thank you! 6/22/2005 1:40 PM | chunt

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks! Can't believe I spent a day trying to work round this before finding you on google - worked first time. 6/22/2005 2:07 PM | Stu

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

super dela

hvala za pomoc

Thank you it's working!!! 6/22/2005 2:07 PM | wk

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

It works thanks bro 6/22/2005 5:41 PM | saad

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

amazing
best soln 6/23/2005 1:16 PM | sandeep

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks a Million ;) 6/23/2005 1:17 PM | Omri

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

It didn't work for me. Is this not for IIS5? 6/24/2005 1:23 AM | chana

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I just can't believe the amount of hoops I have to jump thro to get anything done. I just want to write a simple program - I'm not asking much. Shoot me please. (Sobs into coffee) 6/25/2005 10:51 AM | Tony Smales

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

THANK YOUUUUUu!!!!!! 6/26/2005 1:48 AM | Fiko

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Just wanted to also say thank you as well. Was going to reinstall Windows XP Pro, VS.NET, etc. This has saved me a lot of time. 6/28/2005 7:53 AM | Keith Zerna

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Worked like a charm. Thanks!!!! 6/28/2005 3:47 PM | rp

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

This is a tremendous help!
I thought I had to reinstall VS.NET since IIS was not configured with the right .net framework. Now i am all set! 6/28/2005 10:56 PM | Lin

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks thanks thanks
It worked for me as well
Let me know were I can send some roses 6/29/2005 8:08 PM | Zorro

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

thank you so much, third day at new work place, just imagine i told them that it would take another 4 hours to set up everything again! 6/30/2005 1:56 PM | Stephen

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks very much! 7/1/2005 10:27 PM | Jack Record

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thank you! It worked perfectly. I was going crazy! 7/2/2005 7:18 AM | sean

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

This was perfect mate.... Thanks a Lot...
7/2/2005 10:52 PM | Ravi

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Excellent, that did the trick 7/7/2005 11:53 AM | Greg Maguire

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I know this message might be the same as the others, but thanks a lot, it helped me through the problem. 7/7/2005 4:33 PM | mike

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

grr... #$%#$$#*%?*$#%?*$%?$*%?*$#?%$#$#%$?#$??$%$

I'm still getting that error. Nothing helps. :( 7/8/2005 1:33 PM | doto

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

works like magic ;-) 7/11/2005 7:15 AM | Advait Supnekar

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I see so many aahs in this page. well, this is well documented in MSDN; but doesn't work for me. any suggestions. 7/11/2005 6:44 PM | PVM

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

poxy microsot, the least they could do is add that to the sodding error message, cheers ears was a great help 7/13/2005 6:03 PM | Mike_nz

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks for such a concise and accurate explanation and fix. 7/17/2005 12:25 AM | qwyk

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks, great fix. Now I have "unable to start debugging" but will fix that too. 7/18/2005 1:54 PM | Ronny B

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Microsoft strikes again! After jacking around for hours uninstalling and reinstalling IIS, I finally found this quick fix. Worked great, thanks! 7/19/2005 10:47 AM | Jack Chorce

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Luckely I found this 2 min after I had the problem.....only wasted 2 min because of your great tip.
7/21/2005 5:02 AM | Ronald@Greece

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Fabulous. Thank you. Microsoft website was no use on this one. One look at this page and it's solved. Cheers 7/25/2005 10:15 AM | Andy

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

You rock!!! Thank you so much! 7/26/2005 1:42 PM | Jim Neff

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks, saved me hours! 7/28/2005 2:27 PM | Gary

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

tahnks a million man,,u were a lot of help..some other MS MVP where no good... they dont deserve to be an MVP 7/30/2005 2:33 AM | jake

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

not solved,Give another solution 7/31/2005 2:41 PM | Mani

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I was trying to create a web application for the first time on this machine. Googling for the error message led me straight to this page and it solved the problem...thanks! 8/1/2005 1:05 PM | Ben Fulton

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

That's Really Wonderful Thanks You Very Much!! :-)

8/2/2005 1:58 PM | Dinny

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Tons of thanks. It worked. U saved my night. 8/2/2005 3:33 PM | Prachi

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Any other ideas? I just ran the command line and it seems to have worked, but I am still getting the same error after trying to add the proejct. I am running WinXP Pro... not sure if this makes a difference. Thanks! 8/4/2005 12:14 AM | Jamie

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I get the message "invalid directory" when I type that path into Command Prompt. What can I try? 8/5/2005 1:02 PM | Sean B

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Good its working perfectly fine. Thanks 8/6/2005 8:05 AM | Shahid

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks same problem and it works! 8/6/2005 12:24 PM | ZPCK

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks it Hekped me in Registering.
paramahanns@yahoo.co.in

8/7/2005 1:15 PM | Paramahanns

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks it did work for me. 8/8/2005 5:01 AM | vicky

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

i may be the 15,000th person to use this solution you've posted, but I am just as grateful as all the others! thanks! 8/8/2005 5:27 PM | bk

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I've spent my whole night on this problem, thanks! 8/9/2005 11:39 AM | Joshua

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

but windows 2003 not run! 8/10/2005 6:29 AM | tools

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I was about to crash the computer till this solution. It helped me a lot. Thank you thousands times. 8/10/2005 12:36 PM | Erhan

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

thanks that was a lifesaver 8/19/2005 7:07 PM | Matt

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Very very thanks buddy,its working 8/23/2005 1:39 AM | uknowme001@yahoo.com

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks man, it really helpfull 8/23/2005 3:22 AM | sigit

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Brilliant! Many Thanks 8/24/2005 6:06 PM | Kate

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks very much!! 8/25/2005 3:32 PM | Steve

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I was stucked here for the last six days. I re-intalled VS.NET and IIS but didnt worked out.Your tip is great.Thanx a ton.

Vinay 8/26/2005 10:51 AM | Vinay Mehra

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Whew! I was about to throw a fit of anger at MS until I found this gem on google. My first attempt was with MS Kb Article 817267, but I found out it did not apply to Windows XP, although obviously it was not mentioned in the article. Thank you simply does not express my gratitude!! 8/28/2005 7:08 PM | Carlos

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks! I cannot believe the other sites didn't include the path. 8/30/2005 2:01 PM | Dave

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thank you very much!!! 8/31/2005 9:47 AM | Thameem

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

YOU ARE A STAR!!!!!!!!!!!!!!!!!! LOOKED ON OTHER SITES AND DIDNT WORK!!!! THANX!!!!!! 9/2/2005 12:24 PM | Vik

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Great job man. Saved me from hell of a troule.
Keep the good work! 9/4/2005 2:44 PM | Mike Sokolov

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks, support.microsoft.com didn't help me.
This worked great 9/6/2005 10:49 AM | Dan

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks for your help, this worked great! 9/8/2005 11:29 AM | Bradley Hardin

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

You have helped many people with this! Thanks so much!!! 9/9/2005 6:45 PM | Mark

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Cool! Thanx 9/10/2005 4:30 PM | CFE

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Sos un Grande, muchas gracias 9/11/2005 12:39 PM | Mariano

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks for ur help, great!! 9/12/2005 3:11 AM | Prabhakar

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

oo my god!it really works..thanx a lot! 9/12/2005 11:43 AM | Ely

# Doesn't work all the time.

I am greatful for the post. I was hoping that it would save me like the rest. But it was not to be. I am running IIS 5.1 (XP) and I still get the exact same error after this fix. I am glad it worked for the others, but I would be even happier if it worked for me... 9/12/2005 4:05 PM | Trevor Carnahan

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

I thought I would follow up on my previous post with what did work for me. Something else we can put on the list of things to try before going postal. The fix for me was to remove the HTTP host header from the website that I added after creating the web project.

Website Properties -> Web Site tab -> Click Advanced -> Select Default IP Address and Click Edit -> Remove/change 'Host Header Name' value back to what it was before.

I ran into this issue trying to fix my passport issues on XP. Talk about a headache. 9/12/2005 4:22 PM | Trevor Carnahan

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

DITTO ^infinity, great work! 9/14/2005 2:09 AM | the kwackmaster

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Sir, I have done this process, but my problem is not resolved. 9/15/2005 4:16 AM | Manvendra Madhukar

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

brilliant, thanks a million, microsoft site was useless 9/15/2005 1:23 PM | james byrne

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Worked first time. Thanks to you and Google. 9/16/2005 3:25 AM | Fran

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Cheers Matey :o) 9/19/2005 11:29 AM | JP

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Give Ceasar... Great tip!!! 9/19/2005 2:01 PM | JD

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Nice Tip...it helps me a lot!...
Million Thanks! 9/19/2005 11:25 PM | j2x

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

i tried but didn't work...any other method...??? manual register or how i check if IIS 5 is with asp.net 1.1 9/20/2005 6:40 AM | edwin

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

tried this and new one below also did not work.

Click Start, and then click Run.
2. Type regsvr32 <Windows folder>\Microsoft.NET\Framework\<Version Number>\aspnet_isapi.dll, and then click OK. Regsvr32 returns the results of the registration
9/20/2005 7:06 AM | a

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks it worked for us.. 9/24/2005 5:01 PM | sandhya

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thank this worked like a charm. 9/29/2005 2:26 AM | Joe

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks worked first time 9/30/2005 1:27 AM | Pedro Ithier

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

man,man,true man! 9/30/2005 3:56 PM | bbf

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

After 2 days search ... found solution here... it works man... thank you 10/1/2005 2:09 AM | Kumar

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Did the trick! Thank you very much for this. You wouldn't happen to know how to get Microsoft SQL Server 2000 Desktop Engine to work as well by any chance? Cheers. 10/2/2005 11:00 PM | Paul

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

mmm.. let's see... thanks! 10/4/2005 12:14 PM | Steve

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Hey thanks a ton... really helped me a lot ! 10/6/2005 1:34 PM | GMAh

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks a bunch! This is a more helpful explanation than Microsoft offered in their Knowledge Base! I'm glad someone figured out this problem. 10/6/2005 3:31 PM | Derek

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Thanks - Run for president 10/7/2005 2:54 PM | ta

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Very useful tip, thanks a lot.
You have saved me a lot of time and nerve, I was about to reinstall IIS and .NET... 10/10/2005 7:02 AM | Vladimir

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

thanks from Thailand 10/10/2005 9:58 AM | kt

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Sweet. Saved lots of time. Thanx 10/10/2005 10:45 AM | gdgman

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Finally, I got it working thanks to you! 10/14/2005 12:27 AM | AgentWD40

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

thanks man..u r on target 10/14/2005 7:36 AM | Abbas

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Start installing ASP.NET (1.1.4322.0).
Finished installing ASP.NET (1.1.4322.0).
and i still get the message, what should i do? 10/14/2005 1:23 PM | oxygen

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

Fantastic tip!!! Saved Me!!! 10/18/2005 12:55 AM | WNB

# re: "Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications"

perfect 10/18/2005 11:16 AM |