How to pass values into an IN operator saved query in ms access 2007?

[p4willi]

How do I pass a set of values into an IN operator without it treating all the values as one string?

    If [Forms]![frmList]![cbo_frmlist_as].Value = "ALL" Then
       [Forms]![frmList]![hide_frmlist_as] = "PENDING" & "," & "CLOSED" & "," & "REVIEW"

The attachment has the saved query.

Need help - thanks

p4willi