Smart Key

Smart Key is a lightweight and portable software utility that allows users to point out up to ten applications to be launched using hotkeys.
It comes packed with a WYSIWYG interface and self-explanatory options that can be quickly figured out by all user levels, even the ones with no prior experience in computer software.
As there is no setup pack involved, you can drop the executable file to any place on the disk and just click it to run.
There is also the possibility of saving Smart Key to a USB drive or similar device, in order to run it on any PC with minimum effort and no prior installers.
What's more, the app does not create new Windows registry or Start menu entries, leaving the disk clean after removal.
As for the interface, a small window holds ten boxes for pointing out apps to be launched with the help of the file browser. Hotkeys are predefined and cannot be remapped.
In addition, Smart Key is capable of running minimized and automatically starting at Windows boot. There are no other notable features available.
The tool provides speedy app launches and uses low CPU and RAM, so its impact on system performance is barely noticeable. We have not come across any issues in our tests, since the utility did not hang, crash or pop up error dialogs.
It may not contain a lot of options, but Smart Key serves its purpose and can be used by anyone.