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installationnsis

NSIS - How to install the application only if the dll file version is correct?

I want to configure it to install only if the dll file version matches a pre-defined file version. How should I write a script?

GetDllVersion "$INSTDIR\MyDLL.dll" $R0 $R1
IntOp $R2 $R0 / 0x00010000
IntOp $R3 $R0 & 0x0000FFFF
IntOp $R4 $R1 / 0x00010000
IntOp $R5 $R1 & 0x0000FFFF
StrCpy $0 "$R2.$R3.$R4.$R5"
Solution 
  • !include LogicLib.nsh

Section
SetOutPath $INSTDIR

GetDllVersion "$INSTDIR\MyDLL.dll" $R0 $R1
IntOp $R2 $R0 / 0x00010000
IntOp $R3 $R0 & 0x0000FFFF
IntOp $R4 $R1 / 0x00010000
IntOp $R5 $R1 & 0x0000FFFF
StrCpy $0 "$R2.$R3.$R4.$R5"
${If} "$0" == "1.2.3.4"
# ${OrIfNot} ${FileExists} "$INSTDIR\MyDLL.dll" ; Uncomment this if you want to install it if not present
    File "myfiles\MyDLL.dll"
${EndIf}
SectionEnd

    If you want to get the version you compare with from your own system, you can use GetDLLVersionLocal.

    If you need to compare version ranges, use ${VersionCompare} in WordFunc.nsh.