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- problem in using pci serial port comm3 in vb
- As i require two serial ports for project ,i have installed pci to serial card which gives me comm 3 and 4 port, my comm 1 serial port is working good,I have problem using comm3 serial port in vb,vb gives error of 'variable not defined'or 'port already open' even if...
- Discussion threads 2007-04-06
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