Examples for the "connection info" parameter of testsnby.exe:
   com1                  direct connection to COM1
   tcp:pc1:110           TCP connection to port 110 of PC1
   tcp:192.168.1.2:110   TCP connection to port 110 of host 192.168.1.2
   wtcom:ts1             Wiesenman&Theis terminal server ts1 port A
   wtcom:ts1:b           Wiesenman&Theis terminal server ts1 port B
   wtcom:192.168.1.2     Wiesenman&Theis terminal server 192.168.1.2 port A
