Hi mitaux8030,
In my past life we did exactly this. It was in an AD domain structure, and each user account ran "login.bat" as part of the account. These were XP machines.
We used the netsh.exe command line tool in the bat to set network parameters per user (along with a heap of other stuff).
You should be able to do the same in a non-domain environment.
So create a netsh string in a bat file and add to logon script handling.
You can use gpedit.msc to control logon/logoff scripts in XP.
Edit...Forgot to mention, gpedit.msc is not on XP home, only Prof. Just in case you can't find it. If you have Home, I believe there is a hack to get it on, but I have never tried it. There are some 3rd party tools that may do the job.
Bookmarks