I just received my HP TX2500 tablet back from laptop service (fried ATI GPU) and I need software to monitor temperatures which supports emergency system shutdown after it surpasses a specified limit.
Real Temp will work for this purpose. It has an option to add an EXE to be run as an alarm at specific (user set) temperature (for CPU or GPU). You can just add the shutdown.exe executable in C:\Windows\System32. Here's a screen shot, look where it says "Alarm EXE":