A solution might involve firing up MSCOMM.DLL and then polling each individual serial port with AT inquiry commands. I'm not sure of the specific commands you'd use but that should be a solution.
>Does anyone have a handy method for retrieving a list of available modems on a system? It needs to work for Windows 95, 98 and NT.
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John Koziol, ex-MVP, ex-MS, ex-FoxTeam. Just call me "X"
"When the going gets weird, the weird turn pro" - Hunter Thompson (Gonzo) RIP 2/19/05