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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.

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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/


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