The function is not supported on the system

Archived from groups: microsoft.public.windowsnt.misc (More info?)

Hi guys, we are currently managing an NT4 domain via Win2K3 TS connection
using what I am pretty sure is a USRMGR v5.2 that is available for Windows
2003. Although the program seems to work fine, we receive the following
error message when trying to modify the dial-in property for the user;

"The function is not supported on the system"

"The user property cannot be edited or viewed at this time"

I have tried using versions of USRMGR from NT installation and I still get
the same error. It seems that it won't any other usrmgr but this one. Is
there a bug with this tool?