My logbook kept crashing whenever I tried to reply to an existing entry. I found that the percent sign "%", when used in the subject line, will crash the elogd service when you try to reply to the entry. This appears to only happen with windows installations. I tested this on your Linux logbook and it didn't crash.

Here is the message taken from the Windows event viewer after the crash:
An unhandled win32 exception occurred in elogd.exe [5224].

Thank you for Elog, you have done a good job with it.  It is a great logbook.

Mike