Here is an alternate to emulate the what qfarm.exe can do but call on a server remotely and request the server load.
We tested this on both one of our legacy metaframe farms and a citrix xenapp 4.5 and 5.0 farm.
 

** qfarm is a great utility, but can only be run on a server and cannot be launched from a standard os with no citrix dependancies.

Logic is as follows:
1.) attach to server > arrComputers
2.) attach to WMI Namespace - root\citrix
3.) query against MetaFrame_Server_LoadLevel