Error on Vista or Windows 7 when mapping to a Windows XP machine

Trying to map from a Windows 7 or Vista machine to a XP machine you might recieve the following error

The mapped network drive could not be created because the following error has occurred:
Not enough server storage is available to process this command.

Solution Below:
 The server's configuration parameter "irpstacksize" is too small for the server to use a local device.

A registry tweak is required remember when editing your registry be careful.




Start Regedit
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameter s
Edit the IRPStackSize
Give it a value of 18 HEXADECIMAL  or 24 Decimal
NOTE: If the IRPStackSize is not there create the DWORD Value for it and assign the value
Reboot the computer