You could try the steps in the following article:
817075 How to Identify and Troubleshoot NTFS Log File Size Bottlenecks in
http://support.microsoft.com/?id=817075
--
Emmers Presson [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.
"Ron S" <(E-Mail Removed)> wrote in message
news:049f01c3a4b2$ac1e0b90$(E-Mail Removed)...
> I'm running windows 2000 server, I have some folders that
> contain 40 to 50 thousand files. It can take explorer
> many minutes to open such a folder. Is there anyway to
> improve windows for handling large numbers of files?