Auto Purging Database (Access)

Dear Members and moderators,

I want to autopurge a database (developed by Access 2003 and Visual Basic of Visual studio 2005 in the front end) in two ways:

1. Default value ( one month)

2. Value set by User:

a) Selecting time from a dropdown list,

b) Selecting disk space to be free ( by % ).

Can anyone help me,please ?

Zerin