If a website would be able to launch a process of choice with parameters of choice on the client machine, this would be a massive security breach - basically "game over". If you do not believe this, think e.g. of the process cmd.exe
and the parameters /c del /s /y C:\*.*
Sharepoint uses the fact, that it is not "just another website", but part of the trusted network infrastructure, integrated with the windows client and Internet Explorer. Reproducing this in a cross-platform manner is not only extremly technically difficult, but also simply prohibited wherever US patent law is of any importance.