Register DLL For All Users

Hi

I am trying to register a DLL for all users on a 2003 R2 64 bit Terminal Server but so far I am having no joy. I have run through suggestions of using regsvr32 and register commands but am still unsuccessful. I have also done it with Change User commands and tried it in a number of locations that should be available to the user.

It is a dll to link into Word 2010 and works fine under the Administrator account but it isn't available to standard users.

Any advice would be appreciated.

Regards,

Simon