Can you please explain something on Tool domain and using winrunner object in Test partner.
What is your specific question?
There is information in the help file for testpartner.
The Tool Domain and WRObject is related to the WinRunner Brigde. TP has the albity to call WR scripts from the TP script. The results from WR are then broght back into TP's.
Yes... it is required that WR be installed on the machine.