System.DirectoryServices.AccountManagement.IsMemberOf(GroupPrincipal group) recursive

[Hennerfeind]

The above mentioned methode is not possible to get recursive users that belongs to a subgroup.

Sample:
     Group1
          User1
          Group2
               User2
               User3

Only User1 is found.

The Methode GetMembers(true) of GroupPrinciple is very slow. So its not a solution for that issue.

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[Hennerfeind]

Sorry the tree was not good shown...
Group2 is a SubGroup of Group1