Unable to run an exe file from a Servlet

Question

I am not able to run a Servlet that calls an exe file using the following code. trial.exe is was built from a C program and it is simply a program that creates a text file with some content. I am using Tomcat 6.0 and JDK 1.5 on a Windows XP.
{color:#000080}try
Runtime rt=Runtime.getRuntime();
String[] command = {"C://Tomcat 6.0//webapps//ROOT//WEB-INF//classes//trial.exe"};
{color}
{color:#000080}
Process p = Runtime.getRuntime().exec(command);
p.waitFor();
catch(Throwable t)
// System.out.print(t.getMessage());
}{color}
Before running the code on Tomcat I've compiled the code above in a simple java programe and it executed without any problem.
Then I compiled the code within a servlet. No luck. Then I treid the following options:
Executed the Tomcat service under the context of a user by specifying a user(Log On option) for the Tomcat service.
Then with Local System Account, selecting “Allow service to interact with desktop”.
this time also, no luck. Can somebody help me on this please ?
BJJ

Answer 1

For clarity I am rewriting the last sentences here:
Then I compiled the above code within a servlet successfully and invoked the servlet from a browser with and without the following settings of Tomcat 6.0.
1. Executed the Tomcat service under the context of a user by specifying a user (Log On option) for the Tomcat service.
2. Then with Local System Account, selecting �Allow service to interact with desktop�.
I was not succeeded with any of the methods mentioned above.