Navigate the the location below in your registry and make the corresponding change.

Create or edit the existing DWORD value named 'SupportLFN'. 

Modify the value of 'SupportLFN' to either '0', '1' or '2' depending on the table below: 


Value Description
0 = LFN Disabled
1 = LFN Enabled on Netware 3.12 and above
2 = LFN Enabled on all Netware servers that support LFN

Restart Windows. 

Key:[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\NWREDIR]
Value Name: SupportLFN
Data Type: REG_DWORD