Yurik
17th May 2007 11:17 UTC

How to determine .NET 3.0 installed?
Unfortunately, the script for determining .NET version does not determine .NET 3.0 (which is actually, just a few assemblies over 2.0 so that is partially correct). How to determine that a user has .NET 3.0 installed?

Yathosho
17th May 2007 11:35 UTC

have you tried searching your registry, there must be some indication.. i don't have it installed, so i can't help further

Sheik
17th May 2007 15:33 UTC

One of my Installers had a similar requirement, checking to see what version of .NET MicroFrame work is/was installed, and was version 1.0.0 or higher.

You might be able to borrow some of this code for your uses:
(Obviously changing the key you need to look for)

${For} $0 0 1024
EnumRegKey $1 HKLM "SOFTWARE\Microsoft\.NETMicroFramework\" $0

${If} $1 == ""
${Break}
${EndIf}

${VersionConvert} "$1" "" $R0
${VersionConvert} "v1.0.0" "" $R1
${VersionCompare} "$R0" "$R1" $R2

${If} $R2 <= 1
StrCpy $2 "1"
${Break}
${EndIf}

${Next}

Afrow UK
17th May 2007 15:51 UTC

You don't need to use
${VersionConvert} "v1.0.0" "" $R1
Just put "1.0.0" in the place of $R1 for ${VersionCompare}.

Stu

Yurik
18th May 2007 14:36 UTC

Unfortunately, I cannot find any place in registry saying that 3.0 version of framework is installed. I am using the following code supposing that v3.0 sub-branch is always presenting under .NETFramework branch:

; The function checks if a computer has .NET Framework 3.0 installed
Var WinFxFound ; if .NET Framework 3.0 found
Function CheckFrameworkWinFx
  StrCpy $WinFxFound 0
  ReadRegStr $0 HKLM "Software/Microsoft/.NETFramework/v3.0" ""

  StrCpy $0 0

loop:
  EnumRegKey $1 HKLM "Software\Microsoft\.NETFramework" $0
  StrCmp $1 "" done
  IntOp $0 $0 + 1

  ${if} $1 == "v3.0"
    StrCpy $WinFxFound 1
  ${else}  
    goto loop
  ${endif}

done:
  ${if} $WinFxFound == 0
    
  ${endif}
FunctionEnd