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Friday, June 4, 2010

Support for Physical COM Port in Hyper V

Hyper-V does not allow access to a Physical COM Port. Hyper-V does not provide the functionality to associate the virtual COM port to a physical COM port.

However, There is 3rd party software out there that will redirect com ports over the network. To workaround the issue, you may try the following third party tool:

Feel free to share other link if you have tested Virtual COM or Serial Port to the community.


  1. To access the physical com ports from the virtual machines FabulaTech's Network Serial Port Kit can be also used.

  2. Hi Mr. Lai,

    Does this issue still applicable until today? Any solution for Microsoft yet?

    One of the VM need to access COM Serial port to download data from the pabx but unfortunately I cannot connect to COM port from VM so I’m running pabx interface(using physical hadware COM port) from the HOST machine.

    Please advice Sifu!
    Is there any workaround?

  3. Sorry. No access to a physical COM port is available from a virtual machine for MSFT.

    try the third party as recommend by Alex.

  4. Hi Mr.Lai,

    Thanks for the prompt reply. Appreciate tat!
    Keep up your good work!


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