Secure exe

[ldarrambide]

Hello,

i's like to know if it is possible to have a secure macro or exe to launch repetitive password filling in some softwares.

example : macro which fills some popup window

run "c:\program files(x86)\whatever.exe" "my password here as argument" "some other stuff"

Then I encrypt the macro, and then make it an exe.

Will this work?
Is this process:
- allowed to have the macro/exe unable to be reverse engineered to find out the password?
- allowed to be triggered as exe by certain window class, name etc.

Thanks