Application Server Administration job error Hotfix

We have been getting variations on this error constantly...

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An exception occurred while executing the Application Server Administration job.

Message: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
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Application Server Administration job failed for service instance Microsoft.Office.Server.Search.Administration.SearchAdminSharedWebServiceInstance (9c35167a-a25e-4661-8d9e-2f762609ee06).

Reason: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
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The Execute method of job definition Microsoft.Office.Server.Administration.ApplicationServerAdministrationServiceJob (ID 2bcd5c2c-6f34-4a70-b53a-669b337c2b3e) threw an exception. More information is included below.

Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
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Hoorah, there is now a solution!

This comes from: http://www.sharepointfusion.com/2007/12/part-8-of-sharepoint-2007-setup-and.html

Update #1: 1/17/2008

Microsoft has now fixed the issue. See KB946517.
Summary: The root cause is the Internet Information Services (IIS) Active Directory Service Interfaces (ADSI) provider. The issue occurs when you have a process with more than one thread and two threads access IIS 6.0 at the same time. In MOSS 2007, this problem is likely to occur for OWSTimer.exe. When it occurs, you may expereince the following symptoms:
• In SharePoint Server 2007, tasks that are scheduled do not run.
• When you try to manage IIS 6.0 by using Server Manager, you receive a blank page, or you receive the following error message: the path specified cannot be used at this time
When this problem occurs, you must restart IIS 6.0, or you must restart the process that uses the IIS ADSI provider.
To apply the hotfix, you must have Windows Server 2003 SP1 or SP2 installed.

Update #2: 1/17/2008

Brummy21 posted a solution to the issue in Microsoft SharePoint forum:
a. Update .NET 2.0 to Service Pack 1
b. Update MOSS2007 to Service Pack 1
c. Apply hotfix as per KB923028.
Important - the problem was only fixed by applying the hotfix after the service packs - service packs alone did not cure.