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Cannot Use a USB to Serial Prolific Cable with Vista 64 Home Premium RRS feed

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    I have a new HP Pavilion Slimline s3720f desktop running Windows Vista 64 Home premium. I recently purchased a Prolific USB-to-Serial DB9 RS232 Adapter (Prolific chipset) and proceeded to install it using the driver that came with the CD included with the cable. When I plug the USB terminal of the cable in one of the USB ports in my PC, the New Hardware program tries to install it but fails, indicating that it is an Unknown device. Do you have any idea what can be causing this problem?
     
    Thursday, May 28, 2009 5:04 PM

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    Please download the Windows Vista compatible driver from the following website.

    Prolific driver download 

    Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

    After download, please temporary disable the anti-virus and firewall. Then install the driver.

    Arthur Xie - MSFT
    • Proposed as answer by Arthur Xie Monday, June 8, 2009 7:01 AM
    • Marked as answer by mejiaer Monday, June 8, 2009 2:36 PM
    Tuesday, June 2, 2009 9:32 AM

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  • Question
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    Please download the Windows Vista compatible driver from the following website.

    Prolific driver download 

    Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

    After download, please temporary disable the anti-virus and firewall. Then install the driver.

    Arthur Xie - MSFT
    • Proposed as answer by Arthur Xie Monday, June 8, 2009 7:01 AM
    • Marked as answer by mejiaer Monday, June 8, 2009 2:36 PM
    Tuesday, June 2, 2009 9:32 AM
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    Thanks a lot! Somehow I finally got to work. Your help is very much appreciated!!
    Monday, June 8, 2009 2:36 PM