windows installer service could not be accessed <SOLVED>

Discussion in 'ESET Smart Security' started by beholder, Sep 2, 2009.

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  1. beholder

    beholder Registered Member

    Sep 2, 2009
    When trying to install on vista 64bit. I received this error message:
    "windows installer service could not be accessed"

    I tried many things...nothing worked.....But this one did...

    Go to this registry key:


    Look for

    WOW64 and it's value.
    Is it 0x00000001 (1) ?

    This value tells Windows Installer only to deal with 32-bit installers and to return you an error whenever you try to install something that is 64-bit. To fix it, just set the value to 0. So you will see in your editor:

    WOW64 REG_DWORD 0x00000000 (0)

    After changing the value to zero, restart your Windows Installer Service by using services.msc or reboot.

    This simple solution of changing the 1 to a 0 allowed me to finally install eset on Vista 64.

    Hope this helps some other poor soul.

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