I get that error double-clicking this file on Win 2003:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Printers\Back Office Copier\DsDriver]
"printDuplexSupported"=hex:01
"printStaplingSupported"=hex:01
I'm confused, since this is just a pared-down export. What am I doing wrong?