Kernel Parameter - 'Max. num. of system processes'

Hello! I need to tune some kernel parameters but cannot find what 'Max. 
num. of system processes' is called on Tru64. The application vendors 
documentation ( + 'Tru64 - System Configuration and Tuning' manual) has 
not been useful. Any help or pointers would be appreciated.

Just FYI - After much digging around I was able to match the description 
with the parameter name for the following -
- Max. num. of user processes  --> max_proc_per_user
- Max. num. of system users --> maxusers
- Max. num. of  per-process open files --> open_max_soft + open_max_hard

Thanks, Mathew