what should be the path if instaling a program from a network like

"\\operas\dd\ff\r\office update\ofsp1"

I have never personally used WPI from a network.

But be patient several people do and someone will be able to answer your question.

Make a network mapping before you start WPI

I use X: for my applications, so in your case it willl be something like:

"X:\dd\ff\r\office update\ofsp1" (or whatever the share is).

Then in WPI just add the correct paths to your programs.