can't install 7zip in Window 7 (64-bit)

  • Evgeny Voutchkov

    I am running 64-bit Win7, I downloaded the 64-bit "msi" installation file, but when I double click it to install, a message pops up saying "This intsllation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package."

    I also noted that Publisher shows "publisher unknown", and suppose this may have caused the problem. Any idea how to by-pass this message and install in W7?

  • Vacon

    Vacon - 2010-12-01

    Hello everyone,

    - from where did you download it?
    - are you sure the downlaod was complete?

    Best regards!

  • Evgeny Voutchkov

    First time I downloaded it from, and it was an "msi" file that I wasn't able to install.
    Today I tried a download from sourceforge, it was an "exe" file, and it worked! Thanks for the advise.

  • ravi gupta

    ravi gupta - 2017-07-05

    I also faced the same problem when i downloaded 64-bit msi installation package file ,In installing i afaced problem so i contacted aol customer support team. They gave me instant solution ,and i got rid of that issue.


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