The forum will not help you further with that question. For these reasons:
1. Debug is for use on older version MS OS, but not current Windows OS.
2. If you have MS DOS you already have DEBUG.EXE
3. Helping people find unauthorized downloads is country to forum policy
Those are enough reasons.
For information on what that program does:
http://www.computerhope.com/debughlp.htmIf you are compiling programs in C, C++, VB or Delphi, you haven to use a debug tools inn those programs.