Tool for dual/multi core processors to set the affinity of an executable to only 1 core. Some applications may need it.
Setting affinity masks can be useful because some applications and games do not run properly on a multiprocessor system. Restricting such applications to a single CPU using an affinity mask will often solve this type of problem. It's possible to update the affinity of running processes using the normal Windows task manager, but this can be annoying. Firstly, you can't update the affinity until the process is actually running, which can mean Alt-Tabbing out of a game, running Task Manager, finding the correct process, updating the affinity, then Alt-Tabbing back in. Secondly, the changes you make are temporary; when the process terminates, the updated affinity mask is not saved, so next time you start it the affinity is back to the default value.
