IIS Error "Unexpected error 0x8ffe2740 occurred"

I was getting the following error when trying to start IIS from my XP machine:

“Unexpected error 0x8ffe2740 occurred“

You can get more information in MS KB @ http://support.microsoft.com/?id=816944

Finally, I discovered that its caused by Skype. It listens to port 80 for incoming call. Now, most of the time IIS starts before Skype starts. So IIS works but if you restart IIS or try to start IIS after Skype is started then you will get this error message.

There are 2 possible solutions:

1. You can change your IIS settings to run in different port (say 81)
For IIS 7, go to IIS Manager, select the website from the left tree view; then goto "Bindings..." from the right side "Actions" pane and edit the port number.

2. You can change your Skype settings
Skype File-> Options -> Connection
Uncheck Use Port 80 as an alternative for incoming connections.

Restart default website.

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posted on Thursday, July 20, 2006 7:23 AM

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# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 7/20/2006 9:10 AM Mehfuz Hossain

great thanks

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 9/27/2006 7:20 AM Madushan Nanayakkara

thx for ur imformation. it helped a lot.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 7/31/2007 6:35 AM annu

thanks it worked

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 9/25/2007 3:34 AM juric19

Thanks, just my case! :)

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/28/2007 8:16 PM Ash

Thanks a lot you saved my hours of investigation

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/20/2008 7:38 PM mayuri

thanks a lot.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 5/15/2008 5:00 PM vvvvvvv

thanks alot...it worked..

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 6/2/2008 8:26 PM shay

thanks, this was exactly my problem.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 7/29/2008 3:06 PM mazida

thanks bro..it works for me

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/18/2008 5:38 PM ALok

Didn't work!!! My Apache went off????
Any clues on How to get em both up and running

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/19/2008 12:00 AM Shahed

Hi Alok,

Can you please tell me what steps you followed?
Also, you may try restarting your pc after changing the settings or manually restart the web server

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/19/2008 12:02 PM Chris

I can't believe all this time it was Skype.
I've been pulling my hair over this!
Was starting to really hate IIS..... Come Skype what gives!!!!!

Fix worked perfect.
Just change the settings in Skype and presto IIS is back up and running!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/28/2008 1:31 PM pramod

thanks for your suggestion

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/1/2008 4:59 PM Amgad

you are a greate prof

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/2/2009 2:08 AM dimitar

Your advice was spot on. Thanks!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/25/2009 1:51 AM Rev. Kathryn

Thanks bunches! You saved my day!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/11/2009 9:41 PM Kunz

juhui, that helped!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/13/2009 6:49 PM hombre

thnx man, that worked

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 4/15/2009 6:10 PM Mafaz

Thanks man..it was exactly the thing... ;)

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 4/19/2009 8:31 PM Joseph

Thanks its correct

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 5/12/2009 7:14 PM Derik Whittaker

Killing skype worked for me.

Thanks

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 7/23/2009 5:30 AM Mustufa Vasanwal

many many thanks dude it was to the point

# Yes! 7/26/2009 6:21 AM Ani

That's just right! It was skype. Thanks.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/5/2009 8:45 PM lwk

thanks, that was it!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/14/2009 12:46 PM gjsrinivas

It worked, great.
Thanks.
(small things make big issues)

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 9/7/2009 2:57 AM Sushil

thanks a lot! It was skype!!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 9/7/2009 2:57 AM Sushil

thanks a lot!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 10/18/2009 4:37 AM Mohammad

thx a lot

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/8/2009 10:32 PM Amit Yadav

great thanks

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/24/2009 12:06 AM Shravani

Thank you for the info. It worked after closing the skype.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/7/2010 6:34 AM Akheel

Thanks it worked.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/28/2010 10:25 AM M. Senthilkumar

Hai... Dude..

Thanks a lot....

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/2/2010 11:38 PM Diego

You're a genius!!!!!!!!!
Thanks

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/16/2010 1:28 AM Rupesh Mane

iis not working

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/16/2010 2:14 AM Rupesh Mane

i m sorry iis is working THanks

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 2/21/2010 11:27 PM Majd Karam

Thank you a lot, it worked!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 3/1/2010 12:31 AM Paru

Really helps thank u a lot..

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 3/19/2010 2:52 PM Vlad

Thank you for your help! One little post helps people saving hours of inestigation.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 4/16/2010 2:01 AM Vinodh

I understand the conflict of the port settings but how can i change the port settings. Can you please give detail description about this.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 4/16/2010 12:39 PM Shahed

Hi Vinodh,

I guess you what to change the port for IIS.

For IIS 7, go to IIS Manager, select the website from the left tree view; then goto "Bindings..." from the right side "Actions" pane and edit the port number.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 5/6/2010 2:14 AM Brijesh Vaidya

thank you very much,
it is solved...
keep helping...

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 5/25/2010 11:59 PM Aashish

its very helpfull.......
Thanks alot.....

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 6/29/2010 1:18 AM Deepali

its reallly!!!!!! helpful. it like miracle

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/5/2010 11:04 PM Rudi

great solution, IIS run again when I stopped FileZilla
Thanks alot

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/10/2010 5:42 AM Rocky

U r a life saver.................

WOW

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 8/30/2010 7:45 AM Prof. Ajay Ramteke

Thaks for providing imortant information on IIS error 0x8ffe2740. Realy It works!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 10/4/2010 1:58 PM jai

thanks alot

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 10/8/2010 6:34 AM Naveen

Greate Greate Thanks

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/1/2010 11:24 PM venkat

Gr8 thnx it is working fine

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/2/2010 9:00 AM Andres

Gracias por tan importante aporte!

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/22/2010 4:49 AM sanil

Hearty thanks for sharing this information. It has really helped me. Thank you very much

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/26/2010 2:06 AM Pintoo Singla

Gr8 bro...............

well Done commander...

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/29/2010 12:41 AM soe

Thanks alot..it's because of skype..thanks again

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 12/27/2010 3:57 AM propertytalks

hi this is really informative... thank you

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/5/2011 11:16 PM Koushik

Thanks a lot.. There was no way for me to find out that skype would use port 80.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/18/2011 3:16 AM soshriva

You are Genius, i all used netstat too, but it didn't show that 8080 is being used...

Thanks a ton

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 3/1/2011 1:23 AM abhishek

u pointed out the exact issue on my mac..ur a genius...thx a lot

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 4/20/2011 12:33 AM Palani Star

Thanks it is working . Really help us

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 4/21/2011 5:52 AM Shrikant

Thanks a lot, It is working fine. Great findings

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 5/5/2011 12:10 AM S. M. Kajem

Ya, Your described reason is correct.
Thank You

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 5/5/2011 12:11 AM S. M. Kajem

Ya, I got the solution.
Thank You

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 9/6/2011 6:42 AM kdthakur

plz my solb. problem

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 9/7/2011 12:12 AM Manu

Woo.. This helped me a lot. Thank you...! :)

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 11/8/2011 11:52 AM Jaimeen Shah

Thanks for your post. It resolve my problem.

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/10/2012 8:03 AM suresh

very useful. Thank you

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/29/2012 10:48 PM Nomi

I am using both of API server and IIS server but I face same like this problem to starting IIS server...
what should i do for it ?

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/30/2012 5:47 AM Rahul

Really Helpful
Thanks alot

# re: IIS Error "Unexpected error 0x8ffe2740 occurred" 1/30/2012 12:40 PM Shahed

Hi Nomi,

Looks like you have multiple web servers trying to use port 80. You can try the first option and set IIS to a different port (say, 81).

If you set the port to 81, the url would look like this: http://localhost:81/

Shahed's blog

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