ActiveSync 3.7 and XP

When I try to install ActiveSync 3.7 on XP, It just doesnt bring up the installation screens to continue to install, I have tried so many ways to overcome it but it just doesnt work. The PDA is recognised by XP as a USB device and the files can be transferred by Infrared but the base problem is still there as Activesync doesnt get installed, There are no processes running or freezing regarding activesync to troubleshoot the problem as it doesnt get installed to have any services/processes. The last thing I want to do is reinstall XP to install activesync. Please help!!!!