Entry Bitness

In the sections listed in the table below, entries can be either "32-bit" or "64-bit".

By default, the bitness is the same as Setup/Uninstall's install mode — 32-bit in 32-bit install mode, and 64-bit in 64-bit install mode — but may be overridable on a per-entry basis.

Section(s) What the entry's bitness affects How to override
[Dirs] Name parameter: System path redirection Not possible
[Files]
  • Source and DestDir parameters: System path redirection
  • regserver flag: Which regsvr32.exe is used to register the file
  • regtypelib flag: Which registry view the type library is registered in
  • sharedfile flag: Which registry view's SharedDLLs key is updated
Include the 32bit or 64bit flag
[Icons] useapppaths flag: Which registry view is accessed Not possible
[InstallDelete]
[UninstallDelete]
Name parameter: System path redirection Not possible
[Registry] Which registry view is accessed On the Root parameter, include a 32 or 64 suffix
[Run]
[UninstallRun]
Filename and WorkingDir parameters: System path redirection Include the 32bit or 64bit flag