Windows wobbulator software issues.

I dont know if anyones seen this:

https://www.qsl.net/om3cph/dds/wobbler.html

Its a wobbulator project for analysing rf networks, looks pretty good, the hardware uses the parallel port to control its hardware.

I cant get the sowtware to work on windows 7, my wifes pc which is xp works ok, but w7 comes up with parallel port access violations.
This pc is now w7 and it doesnt work, it used to be xp and then it did work, so its a windows thing not a hardware thing.

We're being forced to follow Mickeysoft's development and marketing path. You may have written the application using VB6, which is what I use, but not on this machine, which is Win764. Compatibility problems. So after 21 years I have been forced to switch to 'Lazarus'.