Directory Programming .NET

Hi,

I'm using the query below to search for active users, I want to also pull back contacts, when I add (objectClass=contact) to the query it doesn't return anything. What am I doing wrong and can I do this in one query? Thanks

(&(objectCategory=Person)(objectClass=user)(!userAccountControl:1.2.840.113556.1.4.803:=2))

Many thanks

Contacts do not have objectClass=user, so you would need to OR these together to get both users and contacts in one query:

(&(objectCategory=Person)(|(objectClass=user)(objectClass=contact))(!userAccountControl:1.2.840.113556.1.4.803:=2))