Where is custom page size file location?

I have Adobe Acrobat 7 Pro and have created several custom page sizes which everyone in my office needs access to. What file contains that information so I can copy it to each computer? Or, even better, can Acrobat be told where to look (on the server) so everyone is looking at the same location? That way if something changes I don't have to copy to all computers.

Thanks,

Eric