Scott Hanselman

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"Unexpected Error 0x8ffe2740 Occurred" Error Message When You Try to Start a Web Site

December 29, '05 Comments [3] Posted in Musings
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Skype vs IISMental note: Skype will grab port 80 if it starts up before the IIS Web Server leading me to "Unexpected Error 0x8ffe2740 Occurred."

Fix: Turn off "Use port 80 and 443 as alternatives for incoming connections within Skype's options.

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Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. I am a failed stand-up comic, a cornrower, and a book author.

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Comments [3]
Thursday, December 29, 2005 5:37:16 AM UTC
Yeah - this is one of those fun ones that's easy to google once you already know the answer:
http://www.google.com/search?q=0x8ffe2740+port+80+iis+skype

Skype and IIS are in collusion on this one - Skype picks a crazy default (assuming it's okay to take over port 80) and IIS serves up a completely wacky error message. Would it be so hard to tell use which EXE is using port 80?
Jon Galloway
Wednesday, January 04, 2006 2:55:15 PM UTC
Brilliant.

I have had problems opening a solution in Visual Studio with the error 'the server is not running asp.net 1.1'.

I tried everybody's 'answers' to try and fix the problem and they haven't worked.

You have given me the simple solution!
Alister McLeod
Thursday, January 05, 2006 8:00:51 AM UTC
I've run into problems with Skype and IIS twice. First time on port 80, then on port 443.

http://www.georgevreilly.com/blog/SkypeAndSSL.aspx
George V. Reilly
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Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.