Keeping the wireless connection after logging off

Hi,

I'm looking for a solution to keep my wireless connection even logged
off.

I'm using Windows XP SP2 with a wireless connection using WPA2, PEAP
using MSCHAP_v2 and a certificate.

I found out that if i deleted the key EAPOL from the Registry, and log
off after, the connection would stay up and the computer would stay
reachable.

But when i logged back in, i need to configure my wireless connection
because it has lost the Authentication certificate configuration.

Is there a way, to keep this wireless connection on even after logging
out ?
Is there a way to get my wireless connection prior to windows logon ?