Run WiX EXE CustomAction from TempFolder

custom-action, wix, wix3.5

Solution

Following code compiles for me (can't test it right now)

Add this under your root directoy

<Directory Id="TempTest" FileSource="[TempFolder]"></Directory>

And declare the custom action like this

<CustomAction Id="ActivationUtility"
              Directory="TempTest"
              ExeCommand="ActivationUtility.exe"
              Execute="immediate" Return="check" />

You can of course change the id of your folder

Problem

I'm using WiX 3.5 for the following. I have some files (an EXE and DLL) that I need to extract to the TEMP folder at the beginning of the installation (before the EULA is displayed), then run the EXE. I have the part working that extracts the files, using http://msiext.codeplex.com/. The code looks like this: ``` <CustomAction Id="SetBinaryWrite_TargetFileName_1" Property="BINARYWRITE_TARGETFILENAME" Value="[TempFolder]ActivationUtility.exe" /> ``` Notice that [TempFolder] is used and (on Windows 7) resolves to "C:\Users\USERNAME\AppData\Local\Temp\", and this is not "set up" anywhere in my WXS files - it's a Windows property, like ProgramFilesFolder, etc... I set up my EXE CustomAction like this: ``` <CustomAction Id="ActivationUtility" Directory="TempFolder" ExeCommand="ActivationUtility.exe" Execute="immediate" Return="check" /> ``` The linker then complains: error LGHT0094 : Unresolved reference to symbol 'Directory:TempFolder'. If I use "[TempFolder]", the compiler complains. Why does this property work for one CustomAction, but not another? What exactly do I need to do to reference the TempFolder for the above CustomAction?

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