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Outlk12.adm is in not in a valid format

Posted on 2008-11-04
Medium Priority
Last Modified: 2012-05-05
Hi everyone,

Our WIndows Server 2008 DC is throwing up this error:

"The .adm file "...Policies\{100177F0-8B76-44B7-9AC4-33028DB9060F}\adm\outlk12.adm" is in not in a valid format and must be replaced. Details: Input string was not in a correct format."

If it told me what line then I might have been able to take it from there.  Where and what formatting error am I looking for here?

Question by:AstraeusLTD
LVL 29

Accepted Solution

Michael Pfister earned 2000 total points
ID: 22940741
have you tried to replace the template file with the ones downloadable at Microsoft?


When editing GPOs on a Windows 2008 server, using the new ADMX templates is recommended.

Author Closing Comment

ID: 31513060
Many thanks.  Solved.

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