Although not worrisome it is still a bug, and very likely tied into the known problem where the program crashes when switching to the next disk, while cleaning up old data from memory about the previous disk.
First, I highly appreciate your work on JkDefrag and MyDefrag. The very first thing I do, installing or optimizing any version of Windows, is disabling the built-in defragger - then I install one of yours. MyDefrag is my late discovery, shame on me
I run v.4.0b7 on Windows 7 RC x64. On every fresh install it crashes on first HDD, swithing from first partition into the second one. But it does it only on the first run and running enclosed "optimizations" scripts only. "Analyze" and "defragment" scripts are not plagued with this behavior. Log included.
Thanks again for your valuable work and best wishes