Hello,

You are dealing with a driver issue, get 64bit drivers for your USB to
Serial hardware. You cannot use 32bit drivers on 64 bit.

You can also check the current status of your hardware in "Device
Manager" in Windows 7.

Best regards,
Jón Frímann.

On fös, 2013-05-10 at 11:46 -0500, Gerald Payton wrote:
> Larry,
> 
> I have had to change computers from one running win7-32 to one running
> win7-64.  I have installed your LATEST versions of Win7-64 and cannot open
> WinSDR.  It says that it cannot open Comm. 1 and closes.  All that I have on
> the present computer is a USB to DB-9 cable and it is on Comm. 5.  I do not
> know how to get SDR to access the Comm.5 port, because it shuts down.
> 
> Regards,
> Jerry
> 
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