ESENT Error When Modifying OpsMgr Agent

Posted on March 19, 2010 by Sam T

Getting “ESENT Kerys are required to install this application” when you are trying to modify/change an agent installation?

This seems to be most common on Windows 2008 and i guess it’s because of the UAC and the fact that opening the Control Panel isn’t running in administrative mode.

To work around this you need to run the msiexec command on the correct installation GUID from an administrative command prompt.

Besides running through the registry to find the GUID, one of the easier ways is this:

Open an administrative command prompt.
run wmic product
Locate your product by its name, the GUID (looks a bit like this {25097770-2B1F-49F6-AB9D-1C708B96262A}) directly after that is the one you want. Copy it.
run msiexec /i <PASTEYOURGUIDHERE>
Modify the agent as pleased

That’s pretty much it. Good luck.

Categories: OpsMgr 2007 | Tags: Errors, How-To, OpsMgr, Windows, Windows Installer, WMI

About Sam T

I am a System Management consultant focusing mainly on System Center Operations Manager, System Center Opalis some Microsoft SQL Server and OP5. Besides doing consulting I am also an MCT and are holding both the official System Center Operations Manager courses at all levels (50028, 50216, 50231) at Cornerstone and Global Knowledge and holds customized classes at customer sites.

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