Process Lasso (64-bit) for Windows

Process Lasso will make your PC operate more smoothly by dynamically re-prioritizing running programs. When a process starts to monopolize the CPU(s), it is temporarily reduced in priority so that it does not bring your system to a stall. We call this feature ProBalance (Process Balance). Process Lasso also offers an assortment of ways to take full control of processes running on your computer.You can choose what priority and what CPUs any process should be given each time it is launched.

You can have overly active processes automatically moved to the CPUs of your choice until they calm down. In addition, you can disallow certain programs and log all programs that are run. You can also limit the number of instances a program can have, so that accidental launching of multiple instances is prevented.