Check for .NET4.5+ with NSIS

Question

All, I am aware of the following methods to check the framework version in NSIS. For .NET4.0+ I currently use

Function IsDotNetInstalled

    StrCpy $0 \"0\         


        

Answer 1

Here's a simple NSIS Function that checks for .NET versions (works for 4.5, 4.5.1, 4.5.2 and 4.6). The numeric comparisons are based on MSDN.

Place the function in your NSIS file and invoke it like so

Call CheckForDotVersion45Up
Pop $0
DetailPrint $0

Here is the function.

; returns a numeric value on the stack, ranging from 0 to 450, 451, 452 or 460. 0 means nothing found, the other values mean at least that version
Function CheckForDotVersion45Up

  ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" Release

  IntCmp $0 393295 is46 isbelow46 is46

  isbelow46:
  IntCmp $0 379893 is452 isbelow452 is452

  isbelow452:
  IntCmp $0 378675 is451 isbelow451 is451

  isbelow451:
  IntCmp $0 378389 is45 isbelow45 is45

  isbelow45:
  Push 0
  Return

  is46:
  Push 460
  Return

  is452:
  Push 452
  Return

  is451:
  Push 451
  Return

  is45:
  Push 45
  Return

FunctionEnd