service bat install not working tomcat7

Hi,
I am creating a windows 7 installer for my application using InstallAnwhere 2011. I am not able to install tomcat7 as service.
In the install tab I have added Execute Target file
Name : service.bat
Target : $USER_INSTALL_DIR$$/$apache$/$bin$/$service.bat
Command Line: $EXECUTE_FILE_TARGET$ install

But it does not install Tomcat7 as service. The machine where I am installing has User Account Control (UAC) disabled. I also tried executing installer as Administrator (right click -> run as administrator).

I will really appreciate any inputs.

Regards,
Nik