WPAS–Windows Process Activation Service–Is there nothing this service cannot kill?

Had a problem recently where we were seeing really slow IISRESET’s on SharePoint servers. At first we thought it might be the CRL check playing havoc with the restarting of .NET apps, but it turned out to be a broken Windows Process Activation Service (WPAS). The errors in the Event log were:

Log Name:      System
Source:        Service Control Manager
Date:          23/10/2011 2:08:21 AM
Event ID:      7022
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      NOPSHSNLWEB01v
Description:
The Windows Process Activation Service service hung on starting.

-----------------------------
Log Name:      System
Source:        Service Control Manager
Date:          23/10/2011 2:08:21 AM
Event ID:      7001
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      NOPSHSNLWEB01v
Description:
The Net.Msmq Listener Adapter service depends on the Windows 
Process Activation Service service which failed to start because 
of the following error: 
After starting, the service hung in a start-pending state.

-----------------------------
Log Name:      System
Source:        Service Control Manager
Date:          23/10/2011 2:08:21 AM
Event ID:      7001
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      NOPSHSNLWEB01v
Description:
The Net.Pipe Listener Adapter service depends on the Windows 
Process Activation Service service which failed to start because 
of the following error: 
After starting, the service hung in a start-pending state.

-----------------------------
Log Name:      System
Source:        Service Control Manager
Date:          23/10/2011 2:08:21 AM
Event ID:      7001
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      NOPSHSNLWEB01v
Description:
The Net.Tcp Listener Adapter service depends on the Windows 
Process Activation Service service which failed to start because 
of the following error: 
After starting, the service hung in a start-pending state.
-----------------------------
Log Name:      System
Source:        Service Control Manager
Date:          23/10/2011 2:08:21 AM
Event ID:      7001
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      NOPSHSNLWEB01v
Description:
The World Wide Web Publishing Service service depends on the 
Windows Process Activation Service service which failed to 
start because of the following error: 
After starting, the service hung in a start-pending state.

-----------------------------

Giddyup! Anyway, running the patch that is part of KB 975443 (http://support.microsoft.com/kb/975443) fixed the problem and made all of the WPAS problems go away…

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About Brad Saide

I'm a SharePoint consultant. I'm also slowly going bald, seem to have a permanent spare tyre around my waist and enjoy socialising with friends over a beer or 10. The last 2 may possibly be related. Started working with SharePoint when the first version was in limited beta release (participated in the Technology Adoption Program while at Woolworths) and have been committed to the adoption of the technology as a business enabler ever since.
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