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When you create a group that uses a wildcard inclusion formula that targets a principal name in System Center Operations Manager 2007, System Center Operations Manager considers a computer object that contains the wildcard string in the principal name to be a member of the group. For example, you may use the following dynamic group inclusion formula:
( Object is Windows Computer AND ( Principal Name Matches wildcard is* ) AND True )
This group includes the following members:
This problem occurs because System Center Operations Manager translates the wildcard syntax for the regular expression as follows:
O* --> O.*
This expression matches any string that conatins at least one O. Additionally, this expression is case-sensitive.
A case-insensitive regular expression resembles the following:
To work around this problem, select the Matches Regular Expression match policy in the Computer Name field so that you use ^[Oo] instead of O*.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.