samba - Sep 2002 - disconnection of network drives in xp and 2000

Can someone please verify if this is the solution for disconnection of
network drives
for xp and 2000 after a period of time as seen by a red mark in the logical
drive letters ? I tried this but still it does not work.

Locate and then click the following key in the registry:
>
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\param
eters
> On the Edit menu, click Add Value, and then add the following registry
value:
> Value name: EnableDownLevelLogOff
> Data type: REG_DWORD
> Radix: Hexadecimal
> Value data: 1
> Quit Registry Editor.

Sincerely,

Dominic Y. Deferia