Access 2003
Windows XP Professional
Let me just chime in and emphasize that Dave is correct: Access security is
pretty tricky.
Download the Microsoft Access 2000 Security FAQ:
http://support.microsoft.com/kb/207793/en-us
Don't worry, it applies through 2003. Note that workgroup security has been
*removed* from 2007, and you cannot apply it to a 2007 format .accdb database;
bear that in mind if you plan to upgrade.
Print out the FAQ. Read it, carefully.
Get a good night's sleep.
Read the FAQ again, even MORE carefully.
Make a backup of your database; verify that it works and put it in a safe
place.
Secure your database using the printout as a guide. I'd suggest checking off
each step as you do.
Workgroup security can be broken, but done correctly it will probably meet
your needs. If the contents of the data are really business-critical and/or if
you're worried about serious hackers deliberately trying to get at data they
shouldn't have, then you should really consider putting the data in a properly
secured SQL Server (and using Access as a frontend).