Since a few week, I can't connect to serinfo, I have no firewall activated and even if press the shift key still won't load, by the way which port is it using, very desperate-mad

I had a similar problem with Servinfo not wanting to finish the startup procedure (at least I think it's similar to your problem).First thing I did was completely delete everything that had to do with servinfo (folder and all).Restarted my computerReinstall Servinfo, and started the program from the .exe itself (not from a shortcut). It loaded up and connected to VATSIM without trouble.Now it works just fine. I don't know how it turned out that way.