how to execute an exe during wix install

Question

<CustomAction Id="RegisterEXE" Directory="INSTALLDIR" ExeCommand="&quot;INSTALLDIR]MyApp.exe&quot; /Register" Execute="immediate" Return="ignore" />   
<InstallExecuteSequence>
  <Custom Action='RegisterEXE' After='InstallFinalize' />
</InstallExecuteSequence>

I have used this code But it does not execute the exe. Exe register itself as ole server and perform few other tasks.

Answer 1

use this

<CustomAction Id="RegisterEXE"
                  Directory="INSTALLDIR"
                  ExeCommand="&quot;[INSTALLDIR]TKW5.exe&quot; /Register"
                  Execute="deferred"
                  Return="ignore"  
                  Impersonate="no"
                 />

<InstallExecuteSequence>
      <Custom Action='RegisterEXE' After='InstallFiles' />
</InstallExecuteSequence>