Recently the c:winnt\debug\usermode\userenv.log started growing uncontrolably. This is on my home win2k pro machine. I am not using the machine much - basically email and some gaming currently, and this log will grow to 1.5gb in a couple of weeks. I cannot find anytthing on the internet that addresses this. I am also an Oracle dba and recently cleaned all oracle components off the box and this problem started after that. Perhaps a registry setting got changed somewhere. Other than this there is no unusual behavior or response time on the box. I first noticed it when I could not read my email. I would open emails and they would be blank. After I discovered by 4gb C: drive was completely full because this log was nearly 2gb in size and then I deleted it, I could then again read the email ok. I have virus checked the drive and found nothing. If I delete this log within 60 sec it is up to 200kb and seems to grow by 17k to 64k every time I ckick it..