[Hpro]

True Vector Key will left behind when unistalling - had my troubles too, couldn't make it run on Win2K talking about the ZA -PRO version 2.** can't remember actually the exact version but over two - It would start once and then just come up with a error couldn't start true vector -- that's why I know this file is left behind and also the Registry key - have uninstalled ZA quite a few months now - but I just managed this tonight a few minutes ago to remove the rest of it as today I had some other not related Win2K problems ( the first in a year) which I had to fix - something would prevent Diskeeper 7.0 from installing - and then also couldn't install DSK 6.0 anymore unless I searched manually the registry for the keys just to find out the the registry entries had been locked and there was no possible way to remove those entries - Access denied - unless I rememberd that Win2k has a second Edition of Regedit called regedt32.exe and it is located in C:\Winnt\System32 - but care must be used - this one can be very destructive - so if you can't remove a Keysstring because it's locked then open Regedt32 click on the Security tab then click on Add and then Administrator or you user name to the ones in there - but before make sure that you have already found the string entry because this one secures each string entry one by one...So there is no global Access for the string or key entries in Win2K Regedit
After you added your username to the Security make sure that you also mark FULL ACCESS and then highlight the String or KEY entry, on the Menubar select Edit and there delete - this will give you a warning that it can't be undone even not if you use the "last good know configurations" as it directly edits the registry and the Value will not be backed up..

That said, this was when I found the True Vector ZA PRO there and then looking in to running devices (Control Panel) - an sure there it was - not loaded, as the rest of the program had been uninstalled a few months ago - but it was still there - now it's now more there..One less to go..
hope this answers your question - I didn't find a second one - now Win2k rocks again and I can go to sleep as I wasted at leat 10 hours today here on this computer table...OH it's almost 2 Am on the third of December..