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Editorial Team
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Asked: 2026-06-06T10:28:42+00:00

I have two MSI installers for 32 bit and 64 bit platforms, and I’d

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I have two MSI installers for 32 bit and 64 bit platforms, and I’d like to create a single installer to ship that will run the appropriate MSI based on the platform it’s being run on. I appreciate that this is not possible with MSI alone.

The package required is very simple, just check the bit-ness of the platform it’s running on and launch the appropriate MSI, but I haven’t yet found any free tools that will do this. I’ve come across NSIS, which looks promising, does anyone know if it is appropriate for this task?

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1 Answer

  1. Editorial Team

    Use x64.nsh to detect the platform and then extract & execute. Something like this:

    !include x64.nsh
Section
Initpluginsdir
${If} ${RunningX64}
  File "/oname=$pluginsdir\inst.msi" "myfiles\amd64.msi"
${Else}
  File "/oname=$pluginsdir\inst.msi" "myfiles\x86.msi"
${EndIf}
ExecWait '"msiexec" /i "$pluginsdir\inst.msi"'
SectionEnd
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