Sure, you can create a batch file using radial and save it in startup. this search result may help,
How to start VPN when logon
You may have many options to connect a VPN server automatically when logon a workstation. Here are some of them.
1. Add pre-setup VPN auto-connection by CMAK to the Startup.
2. Create a logon batch with rasdail command to start the VPN connection.
3. How to run a program when a machine starts
http://www.howtonetworking.com/VPN/autorasdial1.htm
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
Hallo
Is it posible to dail a VPN connection when i user logs on to Windows XP
automaticly
Thank you
Markus Mortsiefer