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Vista 64 Possible Driver Problem, error 'Access is denied'

Vista problem for me. 64 bit version. Have got the driver from here http://www.cooldrives.com/wividrforpr... and it installed ok. I can see in device manger 'Prolific USB-to-Serial Comm Port (COM7)' it says it is working correctly. I have installed CurrentCost 0.9.28 and when I do Download history>Download once>Download via serial port it give me this error.

current cost serial exception: could not open port com7: (5, 'CreateFile', 'Access is denied.')

I am thinking its the driver, can any one sugguest a driver that will work for Vista, the driver I have is version 3.2.0.0 and is dated 31/7/2007.

Also I have very little experience working with COMs ports, I run vista so don't have windows hyper terminal so can anyone suggest a simple to use and small (clean) program to check if I am getting anything from the CC128 at all.

thanks
 
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