Change permissions of "Mailbox Rights" using Script.

I'm using the script located at http://support.microsoft.com/kb/310866 to change the permissions of "Mailbox Rights" located on the user properties, Exchange Advanced tab.However, this works by specifying the DN for each mailbox that I want Change.I need help to create a script, or edit it to modify the permissions of multiple users in the field since the script from Microsoft so I may change by a user at a time in the line of Script:

sUserADsPath = "LDAP: / / ServerName / cn = User1, CN = Users, DC = DomainName, DC = com"

It is possible to insert in the variable "sUserADsPath" multiple paths DN?or is there another way to do this? I am using Exchange 2003.

Maybe a Loop that reads a .csv file of something like that.

Thank you.