Shawn,

There seems to be an issue with the DSCLIENT on NT4.
BUT, have you tried;
code:
DSCLIENT /Q:A /R:N

Could also be:
code:
DSCLIENT /Q:A /C:"Setup.exe" /R:N

But the parameter:
/C:
(The command to execute after unpacking)
Is normally only required if the command following:
/Q:A
(Quiet:Administrative - install)

Is NOT:
"Setup.exe"

By the way, the parameter:
/R:N
Means Reboot:NO (Not even if required)

-Erik