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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.

Posted on Thursday, July 20, 2006 7:23 AM IIS | Back to top


Comments on this post: IIS Error "Unexpected error 0x8ffe2740 occurred"

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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great thanks
Left by Mehfuz Hossain on Jul 20, 2006 9:10 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thx for ur imformation. it helped a lot.
Left by Madushan Nanayakkara on Sep 27, 2006 7:20 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks it worked
Left by annu on Jul 31, 2007 6:35 AM

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Thanks, just my case! :)

Left by juric19 on Sep 25, 2007 3:34 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks a lot you saved my hours of investigation
Left by Ash on Nov 28, 2007 8:16 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks a lot.
Left by mayuri on Feb 20, 2008 7:38 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks alot...it worked..
Left by vvvvvvv on May 15, 2008 5:00 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks, this was exactly my problem.
Left by shay on Jun 02, 2008 8:26 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks bro..it works for me
Left by mazida on Jul 29, 2008 3:06 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Didn't work!!! My Apache went off????
Any clues on How to get em both up and running
Left by ALok on Aug 18, 2008 5:38 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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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
Left by Shahed on Aug 19, 2008 12:00 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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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!
Left by Chris on Aug 19, 2008 12:02 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks for your suggestion
Left by pramod on Aug 28, 2008 1:31 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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you are a greate prof
Left by Amgad on Nov 01, 2008 4:59 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Your advice was spot on. Thanks!
Left by dimitar on Jan 02, 2009 2:08 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks bunches! You saved my day!
Left by Rev. Kathryn on Jan 25, 2009 1:51 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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juhui, that helped!
Left by Kunz on Feb 11, 2009 9:41 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thnx man, that worked
Left by hombre on Feb 13, 2009 6:49 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks man..it was exactly the thing... ;)
Left by Mafaz on Apr 15, 2009 6:10 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks its correct
Left by Joseph on Apr 19, 2009 8:31 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Killing skype worked for me.

Thanks
Left by Derik Whittaker on May 12, 2009 7:14 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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many many thanks dude it was to the point
Left by Mustufa Vasanwal on Jul 23, 2009 5:30 AM

# Yes!
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That's just right! It was skype. Thanks.
Left by Ani on Jul 26, 2009 6:21 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks, that was it!
Left by lwk on Aug 05, 2009 8:45 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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It worked, great.
Thanks.
(small things make big issues)
Left by gjsrinivas on Aug 14, 2009 12:46 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks a lot! It was skype!!
Left by Sushil on Sep 07, 2009 2:57 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks a lot!
Left by Sushil on Sep 07, 2009 2:57 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thx a lot
Left by Mohammad on Oct 18, 2009 4:37 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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great thanks
Left by Amit Yadav on Nov 08, 2009 10:32 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thank you for the info. It worked after closing the skype.
Left by Shravani on Nov 24, 2009 12:06 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks it worked.
Left by Akheel on Jan 07, 2010 6:34 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Hai... Dude..

Thanks a lot....

Left by M. Senthilkumar on Jan 28, 2010 10:25 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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You're a genius!!!!!!!!!
Thanks
Left by Diego on Feb 02, 2010 11:38 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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iis not working
Left by Rupesh Mane on Feb 16, 2010 1:28 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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i m sorry iis is working THanks
Left by Rupesh Mane on Feb 16, 2010 2:14 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thank you a lot, it worked!
Left by Majd Karam on Feb 21, 2010 11:27 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Really helps thank u a lot..
Left by Paru on Mar 01, 2010 12:31 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thank you for your help! One little post helps people saving hours of inestigation.
Left by Vlad on Mar 19, 2010 2:52 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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I understand the conflict of the port settings but how can i change the port settings. Can you please give detail description about this.
Left by Vinodh on Apr 16, 2010 2:01 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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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.
Left by Shahed on Apr 16, 2010 12:39 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thank you very much,
it is solved...
keep helping...
Left by Brijesh Vaidya on May 06, 2010 2:14 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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its very helpfull.......
Thanks alot.....
Left by Aashish on May 25, 2010 11:59 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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its reallly!!!!!! helpful. it like miracle
Left by Deepali on Jun 29, 2010 1:18 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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great solution, IIS run again when I stopped FileZilla
Thanks alot
Left by Rudi on Aug 05, 2010 11:04 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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U r a life saver.................

WOW
Left by Rocky on Aug 10, 2010 5:42 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thaks for providing imortant information on IIS error 0x8ffe2740. Realy It works!
Left by Prof. Ajay Ramteke on Aug 30, 2010 7:45 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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thanks alot
Left by jai on Oct 04, 2010 1:58 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Greate Greate Thanks
Left by Naveen on Oct 08, 2010 6:34 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Gr8 thnx it is working fine
Left by venkat on Nov 01, 2010 11:24 PM

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Gracias por tan importante aporte!
Left by Andres on Nov 02, 2010 9:00 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Hearty thanks for sharing this information. It has really helped me. Thank you very much
Left by sanil on Nov 22, 2010 4:49 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Gr8 bro...............

well Done commander...
Left by Pintoo Singla on Nov 26, 2010 2:06 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks alot..it's because of skype..thanks again
Left by soe on Nov 29, 2010 12:41 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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hi this is really informative... thank you
Left by propertytalks on Dec 27, 2010 3:57 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks a lot.. There was no way for me to find out that skype would use port 80.
Left by Koushik on Jan 05, 2011 11:16 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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You are Genius, i all used netstat too, but it didn't show that 8080 is being used...

Thanks a ton
Left by soshriva on Jan 18, 2011 3:16 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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u pointed out the exact issue on my mac..ur a genius...thx a lot
Left by abhishek on Mar 01, 2011 1:23 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks it is working . Really help us
Left by Palani Star on Apr 20, 2011 12:33 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks a lot, It is working fine. Great findings
Left by Shrikant on Apr 21, 2011 5:52 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Ya, Your described reason is correct.
Thank You
Left by S. M. Kajem on May 05, 2011 12:10 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Ya, I got the solution.
Thank You
Left by S. M. Kajem on May 05, 2011 12:11 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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plz my solb. problem
Left by kdthakur on Sep 06, 2011 6:42 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Woo.. This helped me a lot. Thank you...! :)
Left by Manu on Sep 07, 2011 12:12 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Thanks for your post. It resolve my problem.
Left by Jaimeen Shah on Nov 08, 2011 11:52 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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very useful. Thank you
Left by suresh on Jan 10, 2012 8:03 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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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 ?
Left by Nomi on Jan 29, 2012 10:48 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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Really Helpful
Thanks alot
Left by Rahul on Jan 30, 2012 5:47 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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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/
Left by Shahed on Jan 30, 2012 12:40 PM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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I geting this error for once i need to start the Default Web Site (Stopped) i am using Xp os please hepl me
Left by Goureesh on Aug 28, 2012 3:02 AM

# re: IIS Error "Unexpected error 0x8ffe2740 occurred"
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It worked for me as well...
Left by Ajit Surana on Aug 28, 2013 11:27 PM

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