There's a good article in the UT magazine this month about debugging vfp COM servers with the regular vfp debugger that's applicable to ActiveVFP. AVFP uses an older version of Maurice's debugging technique that works nicely on Win2K. I tried his more recent technique (uses the windows running object table) for XP, using the new source on his website, but couldn't get it to run with AVFP unfortunately. I'm hoping the new article will solve some of these problems...