This sounds like a false positive to me. Unless //echo -a $com(0) is reporting something other than 0, mIRC is unable to perform any keylogging without dlls/coms running, so it really can't be due to a compromised client. The md5 matches up with the correct value for 6.35, so for all intensive purposes mIRC is running perfectly normally.
Thank you argv0,
I really needed to hear that
I was only worried that perhaps one of the 4 scripts that are loaded & currently running may be the cause. I prefer to choose caution every time.