You need to copy the DLLs to %windir%. Wintendo has such a lousy redirector that it temporarily maps Z: to the netlogon share during logon. Accessing the DLLs through UNC is not reliable. You may also want to install the KXRPC service.
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.
