Since Wingate implemented the ENS feature, I can't manage to use it with my ADSL connection, and here's what I found out.
For connecting to my ISP, I have to use a RASPPP program from Lightcomm, and the program installs two network protocols on windows, NDISWAN and PPP over Ethernet miniport.
I use Win98 SE, and whenever I try to install wingate with ENS support, and reboot it for configuring, windows can't boot, and says Windows error protection, reboot the computer.
Only uninstalling Wingate or the RASPPP program I can get rid of the problem, so there is a conflict between ENS and this particular one.
I need the ENS and I need the program, but until some suggestion appears, I'm having to use another windows proxy program.