It seems there's no such a file. I did a *err* search in the mysql directory; the printscreen is here:
www.worldsupport.jp/MySQL.gif
(zoom in to see 100% size)
I don't know if it helps with anything, but I posted the content of the errmsg.sys file here:
www.worldsupport.jp/errmsg.txt
If the error log file should be somewhere (while it doesn't exist now), should the location, etc. be specified in the configuration file or somewhere..?
Thanks