Browse your local main hard drive (I am assuming this is your C:\ drive). Go into the "Program Files" directory and then into the "Java" directory. Next, go into the folder beginning with the letters "jre" (signifying Java Runtime Environment) that has the biggest version number in the folder name. Now enter the "bin" directory and copy the full path from the address bar, it should look similar to "C:\Program Files\Java\jre1.6.0_06\bin\".
Open your batchfile which I presume is named "run.bat" but might be named differently with the batch (.bat) extension. Look for the line beginning with the word "java" in lowercase letters. Paste the path you found previously in front of the word java with quotation marks around it so it looks something like this.
Code:
"C:\Program Files\Java\jre1.6.0_06\bin\java" (whatever else was on the line afterwards)
This should get it going for you and maybe you learned something too.
Batchfile? I have no idea, sorry I'm not good with programming I'm in bin what do I do next? Can you make it more clear. Theres alot of files. I don't see a run.bat in it.