Exec command not working for exe files.

I am trying to run an exe file using exec command from an app engine. This works perfectly when I execute the AE from app designer, but nothing happens when I execute this online via PIA.

My program looks like this:

1. bat file with the command to execute the exe (C:\test\INST\PTF\PsTestFw.exe)

2. App engine that calls this batch file via exec command.

     &strCmd = "C:\PTF_Test\test.bat";

     Exec(&strCmd, %Exec_Asynchronous + %FilePath_Absolute);

   

The above batch file works when its executed from app engine or from command prompt. I created a process in PIA with the same AE name, but nothing happens when I run it. The process runs to success though. I tried including