I must be missing something obvious! All I am trying to do is to come up with filter to create a Set of All Group Owners. Thanks for your help.Anu

did you tried ? /Group/Owner

Anu, I have asked this question before on the forums and noone can help. Any suggestions ultimately fail because there are set restrictions put into place that will not allow the filter to parse, even though it is absolutely needed. The route I am going to have to go to accomplish this is going to be code to evaluate the ownership condition and set true on a boolean attribute for user objects that own groups....if they do, then their "groupowner" attribute will be set to true and THAT is what the set of all group owners will have to be criteria based on. One can indeed do a search scope of /Person[ObjectID = /Group/Owner] and get it to show you who all the group owners are, but you cannot use that xpath filter in a set because of "/group/owner". Its in the technet here: http://technet.microsoft.com/en-us/library/ff356871(WS.10).aspx Scroll down to Unsupport filter definitions. Sorry man. As an aside, we should definitely put this on the suggestion site. This is badly needed!

gdtilghman, Thanks for taking time to reply. To you point, I am happy with how much search scope can accomplish but extremely frustrated with how little the same query or criteia may be defined in set filters and custom expressions in action workflows! We are left with no choice other than writing custom code or creating custom attributes and consuming the overhead of managing them. Why -- MSFT??!! Anu