Description

This article will discuss how to store a return/error code generated by a custom action.

Example: If the .exe file is displaying its own message to the user, the error message that's being displayed when the error code returns may be undesirable.

Solution

1. Create a custom action with deferred execution.
2. The following is the InstallScript code to store the error code:

   Function CheckProduct(hMSI)
   
   String returnCodeStr;
   Number nvSize,returnCode;
   
   begin
   
   nvSize=250;
   
   //Run exe
   
   SprintfMsiLog("path="+INSTALLDIR+"\\AAA.exe");
   returnCode=LaunchApplication(INSTALLDIR+ "\\AAA.exe", "/c", INSTALLDIR, SW_NORMAL,LAAW_PARAMETERS.nTimeout,LAAW_OPTION_WAIT);
   NumToStr(returnCodeStr,returnCode);
   
   //Return Value
   
   SprinfMsiLog("returnCode="+returnCodeStr);
   if(returnCode=0)then
   SprintfMsiLog("Result Success");
   return ERROR_SUCCESS;
   else
   SprintfMsiLog("Result Failure");
   return ERROR_INSTALL_FAILURE;
   endif;
   end;

   where AAA.exe is the .exe file which displays its own message to the user. You can use your own .exe file.

3. Create a SetPropertyTask and use the CustomActionData to get the property into InstallScript. SetProperty will copy the value to the CustomActionData property.

More Information

For more information, see Some Notes on CustomActionData in InstallShield.