Are you allowed to write programs -- Access queries and vba and create tables?
There are examples of people writing there own programs to document their databases.
Many are not sophisticated to the point they are "for sale programs" but do an adequate job
of documenting locally.
Don't get me wrong, there are people who sell Database documenting programs -- but they have to be installed and managed and maintained. These are the ones your company is probably thinking about when they set a policy of no installed programs.
Take a look here- it's just 1 I found
http://www.datawright.com.au/access_...ries_part2.htm