My P4 WinXP-Pro/SP1 (1gB RAM, 3x36G SCSI 160 HD) machine slowed to a crawl. Task Manager showed 2 (!) instances of dfrgntfs.exe that had grabbed 97-98% of system resources between them (system idle was 0%), even though I had not started Defrag (!). Task Ma
nager could NOT halt either instance.

I rebooted, and in safe mode went to c:\windows\system32 and at the DOS prompt renamed dfrgntfs.exe to dfrgntfs.e~e and then resbooted.

I fired up Task Manager -- System Idle was 98%. I then started Defrag (it obviously loaded from c:\windows\system32\dllcache\) and watched in Task Manager. At first dfrgntfs.exe used 3-4% system resources, but after about 1 minute into defragging c:\ (and
with the completion bar showing 1%), the system resources for dfrgntsf.exe shot up to 98% and the system locked up -- no response even in Task Manager.

Any thoughts (apart from a corrupt dfrgntfs.exe)? Anybody know of a virus that calls itself dfrgntfs.exe? Or is this just a case of delete and reload from the CD?