I cannot open application...

[hvhpc456]

I downloaded auto hot key, but when I open the application, It shows autohotkey help...

[Guest]

That is exactly what is supposed to happen. AutoHotkey looks for a script to start, if you it can't find one it opens the help. You need to write a script first before AutoHotkey will do something.

Here is a good place to start https://autohotkey.com/docs/Tutorial.htm