I was fortunate enough to win a license for Drive Backup Professional . I'm running 32 bit Windows XP Professional Service Pack 2 (build 2600) and my processor is 2.20 gigahertz AMD Athlon 64, 64 kilobyte primary memory cache, 512 kilobyte secondary memory cache. Can I download the Drive Backup 64 bit version or do I need to use the 32 bit version? Getting a second computer soon so probably will delay changing out XP until I have to . . . Thanks!