1)   Remote Process Viewer 1.2
This free remote Windows Task Manager shows detailed information about all the processes on a chosen remote computer in a Windows network: process file name, full path, PID, Memory usage, CPU time, user session ID, number of threads and priority.

 2)   Remote Process Explorer 2.0
Manage remote processes and control remote computers. Remote Process Explorer replaces Windows Task Manager with a superior product. Remote Process Explorer allows you to monitor and control all local and remote processes through a single view.