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Our Windows based application dials out to multiple devices using RS-232 connections over RAS with a null modem connection.
These connections are created by calling RasSetEntryProperties with a dwType of RASET_Phone on Vista or 7 and RASET_Direct on previous versions of windows.
From our investigations Vista and Windows 7 can only maintain 5 concurrent RAS connections before dropping older connections when dialed and 9 on Windows XP and 2000.
Are these hard limits in Windows or could this be pointing to other issues in how we communicate of the sockets to these remote devices?
JProgrammer
Posted 2011-05-24T02:45:28.023
Reputation: 141