I am using ADSI to do some simple update tasks with Exchange 5.5<BR>The core of the code that I am using to do the function in my page is;<BR><BR>Set objDL = GetObject("LDAP://Sever/o=Org/ou=Site/cn=Distribution Lists/cn=DistList")<BR>objDL.put "member", "cn=AlisName,cn=Recipients,ou=Site,o=Org"<BR>objDL .SetInfo <BR><BR>This works only to the point where it adds the user but it overwrites any users that are all ready listed there. I suspect that I need to add in a referance to the attribute number. (From looking at the Raw Exchange LDAP properties)<BR><BR>Does anyone know.