working solution for dropped vpn connections

[FreiherrKenny]

Added _Telegram_HttpCrashHandler() to fetch errors related to COM errors like these:

err.number is: 80020009 err.lastdllerror is: 0 err.scriptline is: 1120 err.source is: WinHttp.WinHttpRequest err.helpfile is: err.helpcontext is: 0