Detecting windows 32bit or 64 bit using NSIS

Question

I'm trying to determine which arquitecture has the OS. I'm using this code:

!include x64.nsh

${If} ${RunningX64}
    # 64 bit code
${Else}
    # 32 bit code
${EndIf}

But always enters to #32 bit code in spite of I'm executing it on W7 x64 OS.

Are you absolutely sure there is not something else going on? Other people have been using this without issues. Which NSIS version are you using? — Anders, Aug 06 '14 at 20:01
possible duplicate of [How to detect windows 32bit or 64 bit using NSIS script?](http://stackoverflow.com/questions/13229212/how-to-detect-windows-32bit-or-64-bit-using-nsis-script) — Lonzak, Aug 07 '14 at 07:27

score 1 · Accepted Answer · answered Aug 06 '14 at 20:09

Try running this:

DetailPrint "NSIS=${NSIS_VERSION}"
System::Call 'kernel32::GetCurrentProcess()i.r0'
DetailPrint "GetCurrentProcess=$0"
System::Call 'kernel32::IsWow64Process(ir0,*i.r1)i.r2?e'
pop $3
DetailPrint "IsWow64Process: ret=$2 gle=$3 result=$1"

On my Win8 x64 OS this gives me:

NSIS=v2.46
GetCurrentProcess=-1 
IsWow64Process: ret=1 gle=80 result=1

Detecting windows 32bit or 64 bit using NSIS

1 Answers1