So I set up a basic GUI server with the Minecraft_Server.exe pack and played on that for awhile. I wanted to download one of the Wrappers but it didn't support GUI servers so I DLed the minecraft_server.jar and tried to open it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar nogui" in command prompt but it couldn't find it.
I found a tutorial on how to add things to your PATH value or whatever and thought I had figured it out but my command prompt still couldn't find it. I accidentally deleted the entire PATH value and now I can't remember what was there, and obviously it still can't find the minecraft_server.jar. Now my command prompt can't do anything.
Could someone get me back to where I was (with a working command prompt) before I ****ed everything up, or even better get me to where I can get my command prompt to find my minecraft_server.jar?