Detect 64-bit Vista as O/S?

[dmetzler]

Is there an internal variable that is set if the target system is running 64-bit Windows Vista?

Thanks,

Don Metzler

[dmetzler]

It appears I can read the environment variable PROCESSOR_ARCHITECTURE and see if it is "AMD64"

Now...how to read that environment variable in InstallShield?

Thanks,

Don

[RobertDickau]

If you're using MSI, perhaps some combination of VersionNT64, WindowsBuild, and MsiNTProductType would detect that version?

In any case, you can get the value of an environment variable in MSI using the Formatted expression [%VarName].

[bikeoid]

dmetzler wrote:
It appears I can read the environment variable PROCESSOR_ARCHITECTURE and see if it is "AMD64"

Now...how to read that environment variable in InstallShield?

You can't, at least not in InstallShield 2009.

GetEnvVar ("PROCESSOR_ARCHITECTURE", svArch );

You'd expect this to return the environment variable PROCESSOR_ARCHITECTURE in svArch - instead they hard coded it as "x86" for some inscrutable reason, even on systems that have AMD64 in the environment variable.