JSI Tip 5599. Slow SMB performance when you copy files over the network?

The default behavior of a Windows 2000 domain controller is to use security signatures when comminicating with the Server Message Block (SMB) protocol.

To workaround this feature:

1. Copy / Paste the following to a NoSlowSMB.reg file:

REGEDIT4

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServiceslanmanserverparameters]
"EnableSecuritySignature"=dword:00000000
"RequireSecuritySignature"=dword:00000000

2. Run regedit /s NoSlowSMB.reg on your domain controller, and on you workstation if any of these data values are set to 1.

3. Shutdown and restart your Windows computer.