log as different user

hi, im a newbie here and also in VB.NET...i really need help right now...

im using Windows XP and/or 2000, and a dial up connection in my program...lets say there's one condition that makes my program only can run as 'guest' and only an 'administrator' can connect/using the dial up...but, now i need "this dial up thing" for every hour...is it possible to log as a different user(administrator,to do "this dial up") embed in my program?howto?

~pleaseHelp...
~thanks....

You can use API calls, and possibly even commands in .Net, to run an application as a different user, think you have to load their user hive. Of course you have to know their security details (password) so you cant hack around that. Just search for running application as a different user on the internet, specifically the microsoft website.