How to find ipv4 address on Windows 8?

So I'm trying to port forward my Minecraft Server, and it asks for my ipv4 address. So I look up how to find my ipv4 and it says for me to type in "ipconfig" into my cmd. So I go to do that, but it says: ""ipconfig" is not recognized as an internal or external command, operable program or batch file." What does this mean? How do I find my ipv4?

Dude your path variable is set up wrong: Set it to this Path=C:\WINDOWS\system32;C:\WINDOWS. :\W… Files\Java\jre7\bin

Just type that in:
"Set PATH=C:\WINDOWS\system32;C:\WINDOWS. :\W… Files\Java\jre7\bin"