MS Exchange excessive space use

Hi there,

We are running Win 2000 SBS with some 30 Win98/2000/XP clients. The disk space where MS Exchange is installed, rapidly runs out.When examining contents of the folder, I’ve noticed some 1000 or so *log files, named like: E000045E,E000045B,etc. They are each 5MB and eat up lots of space. There is also mdbdata folder with priv1.stm file, that one is about 3GB of space. While I am sure that priv1.stm file should not be removed, I would like to know whether I can remove those 1000 and something *log files, without affecting Exchange functionality. If anyone knows something about this, please let me know.
Thank you