Unable to launch Delphi 5 Install program on a WINDOWS XP SP1

Hi,

I am unable to launch Delphi 5 Pro Install program on a
WINDOWS XP SP1. (No setup screen, No error message, but I can see
the program running in the taskmanager).

But if I try it on another station with WINDOWS XP (Without SP1),
It is working.

Any Idea how to fix this problem?

Thank's
Vincent