I have a program I wrote in VB 6 and it has been used on XP machines. Now someone is installing it on a Vista machine. We are using a TRENDNET TU-S9 USB - Serial adapter. I download the newest Vista/XP drivers. It show up as a Prolific USB - Serial adapter. This is the same USB - Serial adapter we have used on XP machines. I installed the same driver on my XP machine and it works fine.
So is it a Driver issue or a Vista Issue? From Microsoft http://support.microsoft.com/kb/318784
If it is a adapter issue anyone have one they use with Vista and MSComm