How to launch an application with its UID

LaunchAppWithUIDL(const TUid aAppUid)
{
  RApaLsSession apaLsSession;
  User::LeaveIfError(apaLsSession.Connect());
  CleanupClosePushL(apaLsSession);

  TApaAppInfo appInfo;
  TInt retVal = apaLsSession.GetAppInfo(appInfo, aAppUid);

  if(retVal == KErrNone)
      {
      CApaCommandLine* cmdLine = CApaCommandLine::NewLC();
      //cmdLine->SetLibraryNameL(appInfo.iFullName); // Pre Symbian V9
      cmdLine->SetExecutableNameL(appInfo.iFullName);
      cmdLine->SetCommandL(EApaCommandRun);
      User::LeaveIfError( apaLsSession.StartApp(*cmdLine) );

      CleanupStack::PopAndDestroy(cmdLine);
      }
  else
      {
      // Application with UID can't be found!
      }

  CleanupStack::PopAndDestroy(&apaLsSession);
}