HLMSW versions 3 and below will not operate under Windows 7 or Vista.
We are already testing a new version which rectifies this problem which we will include in a major release scheduled for early 2010, and should work on both 32 and 64-bit versions with one disclaimer being that you will need to mark the "Run as Administrator" option.
If you need this build before this release, contact BTMI.
Peter (BTMI)