I thought installing Tortoisecvs and CVSNT would be a fifteen minute exercise. I was wrong. I spent most of the day trying to figure out why I couldn't get in. I eventually figured out that I needed to modify the config file for the repository to set SystemAuth=yes so I could use sspi. I could retrieve it but I could not commit the file. So I stopped the service and edited the file directly. I am not supposed to do that but it works. Tortoisecvs is pretty cool but it does not like network drives.