Problem using ${RunningX64} in NSIS

I am using the code below in several parts of my script.

${If} ${RunningX64}
; 64bit bits go here
${Else}
; 32bit bits go here
${EndIf}

In one function it runs perfectly fine, but the other calls will not work unless they are used after the initial call that executed correctly.

I have not been able to find any logical reason for this behavior. I have included both the LogicLib.nsh and x64.nsh heather files, but it goes through the开发者_如何学JAVA 64 bit section.

What could it be? There does not seem to be any macros to initialize prior their use. Any ideas?

I'm using GetVersion plugin this way:

Var WINDOWS_ARCHITECTURE

GetVersion::WindowsPlatformArchitecture
Pop $WINDOWS_ARCHITECTURE ; 32 or 64