Windows does provide keyboard shortcuts to quickly do tasks and these shortcuts in fact increase your productivity. But what is missing in Windows by default is keyboard shortcuts to launch an application which is installed. Clavier+ is a nice solution to keyboard shortcuts for apps. It is a freeware tool for Windows which can create custom keyboard shortcuts to launch any installed app on your PC.
You can add any new program shortcuts using the add button. Adding is pretty easy as it lists all the installed apps on your PC and you can select the desired one.
Clavier allows to create keyboard shortcuts using almost any keys, including the Windows key. The created shortcuts can be associated to programs (to launch) or text (to write). You can also create a universal keyboard shortcut to write it: it will work under Word, Excel, and browser.
At any time you can edit the shortcuts as well. You can specify if you need the Caps lock, or num lock or scroll lock to be in on position when using the shortcut.