Installed your program onto my old WinXP box (had to blow the dust off first). No issues with installation.
Borrowed Phil Hart's Rho Ophiuchi Mosaic (
http://philhart.com/gallery/Astropho...ic_rz.jpg.html ), gave the program only M4 as a hint...
The program did crash on occasion when using the HIP catalog. It successfully scanned after four attempts. No issues with the SAO catalog. I just installed SP3 (Running WinXP Media Edition), don't know if it's an issue with the version I have or not.
Results are per enclosed image. Have to admit, didn't think it would be quite so accurate or fast with a crowded field, but hey, I guess your algorithm is pretty solid. I'll try some more rugged tests tonight.
OIC!