Execute a jar in my program!

Hello everyvbody,
I have an application that has to execute a jar, but i cant seem to get it to work. I tried many different things, creating a .bat file that calls the jat, then calling the bat file, i tried calling the cmd.exe and and then sending the dos command to start the jar, but none of this worked.
It keeps on giving me
CreateProcess: d:\docume~1\pw44500\desktop\aimsta~1\aimsta~1.jar error=193
How can i call this other jar?!?
Thanks alot for your help!
Thanks alot

Here is what i have to do, There is a tread looping in a folder checking if a new file is created. Once a file is created, it copies and renames the file into another folder. I then call the JAR to execute some other commands on this file.
I unfortunatly dont have access to the code of this JAR so no way to go add the watch over there. The watch and copying are working fine, the only thing left, is to call the jar.
So far i have tried many things, even creating a .bat file that calls the .jar and calling that instead.
Runtime.getRuntime().exec("cmd /C d:\\docume~1\\pw44500\\desktop\\aimsta~1\\aimsta~1.jar");absolutley nothing happenes. I tried this different ways,
Runtime.getRuntime().exec("d:\\docume~1\\pw44500\\desktop\\aimsta~1\\aimsta~1.jar");and i tried the same code with run.bat instead of aimsta~1.jar and again nothing.
Thanks for your help!!!

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Execute a jar in my program!

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