Vista service pack 1 may stop IIS services

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Posts: 8520
Joined: Wed Jun 21, 2006 8:24 pm
Location: SourceGear
PostPosted: Thu Mar 20, 2008 10:34 am
If you install the Vista service pack 1, there is a chance that your IIS may stop due to the WAS (Windows Activation Process) service being unable to start. When you attempt to start IIS, you may receive the error: The IIS Admin Service or the World Wide Web Publishing Service, or a service dependent on them failed to start. The service, or dependent services, may had an error during its startup or may be disabled.

The solution is to:
1) Make a backup of your applicationhost.config.
2) Bring up a command prompt as administrator.
3) Type cd %windir%\System32\inetsrv\config
4) press enter
5) type notepad ApplicationHost.config
6) press enter
7) Locate the following code:
Code: Select all
  <sectionGroup name="system.applicationHost">
     <section name="applicationPools" allowDefinition="AppHostOnly" overrideModeDefault="Deny" />

8)ADD the following line:
Code: Select all
<section name="configHistory" allowDefinition="AppHostOnly" overrideModeDefault="Deny" />

9) Save the file
10) Try to restart the Window Activation Process Service (WAS). If the service starts, your IIS will then be able to start.

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