Samba 4 insufficientAccessRights when modifying Configuration

[Brian C. Huffman]

All,

I'm getting the following (seen using wireshark):
LDAPMessage modifyResponse(15) insufficientAccessRights (00002098: 
Object 
CN=group-Display,CN=407,CN=DisplaySpecifiers,CN=Configuration,DC=xmen,DC=eti 
has no write property access)

when trying to modify the schema from a software installer.

The installer is trying to add a value to adminContextMenu of 
"2,{11330101-C4C8-11D6-B1DF-000476962053}"

If I try to do the same thing with ADSI, it appears to work. 
Unfortunately there are MANY such modifications the installer needs to 
do, so doing it manually would be extremely tedious.

Is there a reason why the installer can't write but ADSI can?

Thanks,
Brian