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Microsoft dialer.exe or hyperterminal does not recognize or find modem on 2003 Server box?

Microsoft dialer.exe or hyperterminal does not recognize or find modem on 2003 Server box and I have a program that requires the use of dialer.exe.  How can I get dialer to recognize my modem?  For the past 4 year I have had an internal modem using dialer.exe with no problems.  For no apparent reason dialer stopped working.  My best guess was the modem went bad, so I replaced old Broadcom modem with an internal USB modem on the same com3 port.  In control panel phones and modems recognized the modem and installed the drivers, I can query the modem with success, but dialer does not recognize the modem.  I installed an external USR modem on com2 with the same results.  I have NOT installed updates on the server during the past month, and I have not made any changes to the server in the past 6 months.  After uninstalling and reinstalling the modems I have restarted the server many times.  I have scanned for viruses and malware coming up clean.  All suggestions are appreciated.  Lew
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gheist
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Does putty work on COM3 ?
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Check the status of the TAPI service and see what i says if you start (or restart) it.  Often, with many modems, you need to specifically uninstall the drivers for TAPI to recognize the new modem.
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Hi Guys;  I loaded Putty and played with it a little.  Changed the device to com3 but always get "unable to open connection".  This could be due to my lack of knowledge on Putty settings.  TAPI, let me be sure I understand, you suggest I go into services and restart TAPI.  If that does not work then where do I go to uninstall the TAPI drivers?  All input and info is GREATLY appreciated.  Lew
go to modems control panel and delete old modem - that is TAPI device holding COM3 open.
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Davis McCarn
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Hi Guys  Removed and uninstalled all modem hardware and software.  Tried installing 3 different modems, an internal PCI USR, an external serial USR and a USB zoom modem.  Each time I would uninstall all modem software and hardware, restart the server, install the hardware & software, restart the server.  The results were always the same.  I can see the modem in device manager, but dialer.exe and hyperterminal do not see or communicate with the modem.  All suggestions are greatly appreciated.  Lew
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Never totally resolved.  Did a work around and do not need modem on server.  Thanks All!