VIeditorlover 0 Junior Poster

I have an vb6 app. Help works well under any version of 32b version THE SYSTEM(tm) except VISTA(R) 64b. I simply press F1 as usually and nothing happen. Run it as an admin, click tons of confirmation dialogs, press F1 and nothing happen again. Setup add always hh.exe into app's working folder - maybe there is root of my problem?

Many thanks in advance!