http://www.petri.co.il/reg_command_in_windows_xp.htm

>>>This is related to Message #024376, but only indirectly.
>>>
>>>Need to find out what files are registered on one box and compare to a list of registered files on another box. Is this possible? Thanks!
>>
>>
>>To get the registered DLLs on each box into a text file, issue this from a cmd window:
>>
>>REG query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs >c:\dll.txt
>
>Mike, where does this come from? When I type it, I get 'reg' is not recognized as an internal or external command, operable program or batch file.