Exchange CXP team has released Update Rollup 4 for Exchange Server 2010 RTM (KB 982639) to the download center. KB 982639 lists all the fixes included in this rollup. Here are some of the prod...
Published Jun 17, 2010
Version 1.0
Blog Post
Steen Kirkby's fix didn't work for me :( but I was able to get it done another way:
What I did to get it working again was download Rollup 4 from MS and saved it to the desktop:
http://www.microsoft.com/downloads/details.aspx?FamilyID=09b4973e-3a80-4fb9-9f60-5c6e2b7a2727&displaylang=en
http://www.microsoft.com/downloads/details.aspx?FamilyID=09b4973e-3a80-4fb9-9f60-5c6e2b7a2727&displaylang=en
Stopped the following services: all Exchange services, World Wide Web Publishing Service, IIS Admin, Microsoft Search (Exchange), Remote Registry, Windows Management Instrumentation and changed their startup type back to what they should be.
Then I launched the installer for rollup 4, finished the patch, rebooted and all was in order once again. Hopefully this helps someone else.