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Editorial Team
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Asked: 2026-05-13T09:42:11+00:00

I’am using the Rs232 Class Library in a vb.net application to print text to

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I’am using the Rs232 Class Library in a vb.net application to print text to a POS printer.
in the last week some of our clients have upgraded their system to Windows 7 x64 bits versions and start to fail when they print text via COM to the printer.
Can anyone help me regarding this? Is there anything special you have to do with a 64bit enviorment when using the Rs232 library or is it the application itself that needs modification?

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1 Answer

  1. Editorial Team

    There is no difference in the serial port support for x64 Win7. The COM port is however very likely to be either missing or at another port number. Your customer will need to use Device Manager to find the correct port number.

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