After downloading the Process Dashboard Installer, you can launch it on most systems simply by double-clicking on the file. However, in a few rare cases this may not work as expected (for example, WinZip may appear, showing the contents of the installer file). In such cases it is simple to start the installer manually by following the steps below.
java -jar C:\pdash-install-psp-tsp-2-6.jar
and click OK. (Note that the part in blue should match the name of the installer file you downloaded - edit if necessary.)
java -jar ~/pdash-install-psp-tsp-2-6.jar
(Note that the part in blue should match the name of the installer file you downloaded - edit if necessary.)