Unexpected error 0×8ffe2740 occurred
I recently had a problem with Internet Information Services (IIS) 5.1 where the website had an error icon and wouldn’t start.

When I tried to start I got “Unexpected error 0×8ffe2740 occurred”.
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A quick google revealed that the problem is a port conflict.
However, you have to do some rooting around to find out what is using port 80. On my system I found out that Skypeâ„¢ was the culprit! By default Skypeâ„¢ latches on to ports 80 and 443. This is probably acceptable on a typical consumer’s PC, but obviously causes problems on a developer machine.
Fortunately, this behaviour is configurable. Just open Skypeâ„¢’s options dialog, select “Connection” and uncheck “Use port 80 and 443 as alternatives for incoming connections”.

Once you’ve saved, you may need to restart skype. If you don’t have Skypeâ„¢ or are still having problems, you’ll need to use a third party tool like TCPView to find out what process is using port 80.

September 4th, 2006 at 20:29
greate !!! fix my problem in minuts
October 5th, 2007 at 18:10
Yes!!! Thank you very much. This solved my problem.