Got a crash right at the start - well, right at the start of the factoring, to be specific. Without a worktodo.ini, the program starts.

The last output is "Chance of finding a factor[...]"

Then, I get "instruction 0x004094f7 tried to write on memory segment 0x0110d000..." (the text might not be exact, bur the values are - maybe they help you).

Using WinXP SP1 (german) on a P4c 2.4 GHz