MultiUser.nsh does not support $PROGRAMFILES64

The following patch adds the feature using a MULTIUSER_USE_PROGRAMFILES64 define which the 64 bit installer needs to set before including MultiUser.nsh:

--- C:/Programme/NSIS/Include/MultiUser.nsh So Feb 1 15:44:30 2009
+++ C:/Programme/NSIS/Include/Kopie von MultiUser.nsh Do Apr 30 15:34:13 2009
@@ -91,7 +91,11 @@
!if "${UNINSTALLER_PREFIX}" != UN
;Set default installation location for installer
!ifdef MULTIUSER_INSTALLMODE_INSTDIR
- StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !ifdef --- C:/Programme/NSIS/Include/MultiUser.nsh So Feb 1 15:44:30 2009
+++ C:/Programme/NSIS/Include/Kopie von MultiUser.nsh Do Apr 30 15:34:13 2009
@@ -91,7 +91,11 @@
!if "${UNINSTALLER_PREFIX}" != UN
;Set default installation location for installer
!ifdef MULTIUSER_INSTALLMODE_INSTDIR
- StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !ifdef MULTIUSER_USE_PROGRAMFILES64
+ StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !else
+ StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !endif
!endif
!endif

@@ -129,7 +133,11 @@
${if} ${AtLeastWin2000}
StrCpy $INSTDIR "$LOCALAPPDATA\${MULTIUSER_INSTALLMODE_INSTDIR}"
${else}
+ !ifdef MULTIUSER_USE_PROGRAMFILES64
+ StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !else
StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !endif
${endif}
!endif
!endif

+ StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !else
+ StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !endif
!endif
!endif

@@ -129,7 +133,11 @@
${if} ${AtLeastWin2000}
StrCpy $INSTDIR "$LOCALAPPDATA\${MULTIUSER_INSTALLMODE_INSTDIR}"
${else}
+ !ifdef MULTIUSER_USE_PROGRAMFILES64
+ StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !else
StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !endif
${endif}
!endif
!endif

Sorry, the patch got crumbled, here goes the patch again:

--- C:/Programme/NSIS/Include/MultiUser.nsh So Feb 1 15:44:30 2009
+++ C:/Programme/NSIS/Include/Kopie von MultiUser.nsh Do Apr 30 15:34:13 2009
@@ -91,7 +91,11 @@
!if "${UNINSTALLER_PREFIX}" != UN
;Set default installation location for installer
!ifdef MULTIUSER_INSTALLMODE_INSTDIR
- StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !ifdef MULTIUSER_USE_PROGRAMFILES64
+ StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !else
+ StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !endif
!endif
!endif

@@ -129,7 +133,11 @@
${if} ${AtLeastWin2000}
StrCpy $INSTDIR "$LOCALAPPDATA\${MULTIUSER_INSTALLMODE_INSTDIR}"
${else}
+ !ifdef MULTIUSER_USE_PROGRAMFILES64
+ StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !else
StrCpy $INSTDIR "$PROGRAMFILES\${MULTIUSER_INSTALLMODE_INSTDIR}"
+ !endif
${endif}
!endif
!endif

It would be nice if this patch could be included in the official release.

While this patch is very useful, it should be extended to do the same for COMMONFILES64 and any other 64-bit-specific items.
Will there ever be another NSIS release??

Instead of patching MultiUser.nsh I use quite a bruteforce method to support $PROGRAMFILES64. I replace $PROGRAMFILES with $PROGRAMFILES64 in $INSTDIR with the StrRep function that can be found here: http://nsis.sourceforge.net/Another_String_Replace_%28and_Slash/BackSlash_Converter%29

${StrReplace} $INSTDIR $PROGRAMFILES $PROGRAMFILES64
StrCpy $INSTDIR $0

Can a maintainer comment on why the patch provided for this very old bug has not been included in the official releases? The problem seems to be still there and it is very annoying.