We ve the problem with doing search jobs within windows explorer.
After 10 mins or something a bluescreen appears.

Bluescreen in NWFS.sys
code: 0x0000001e (0xc0000005, 0xb5e7408f, 0x00000001, 0x00000000).
Microsoft Windows 2000 [v15.2195]

22. Blue screen in NWFS when UTF8 enabled. (153696)

Windows 2000 + SP4 prf
Client 4.91 SP2 + latest patches september 2006
Netware 6.5 SP5
On all types of hardware.