Cannot provide arguments in `Custom actions / shell command`

[PYUDNG]

Reproduction

cmd /k echo test

Temperory workaround

1. Create a .vbs file with the following content:

CreateObject("Wscript.Shell").Run "cmd /k echo test"

Replace that cmd /k echo test with yours

2. Set your custom action's Shell Command to this .vbs file's path

[flexits]

That's due to how ProcessStartInfo works, so yes, generally speaking you can't provide arguments. Otherwise, it would require a more complex UI with executable name and run arguments separated.

A workaround would be to use a shell script like described here.

However, a possible solution is to alter the CustomAction.GetAction() method here to respect arguments (that is, parse command string into whitespace-separated tokens and instantiate the existing ProcessStartInfo object with correct ArgumentList property).

[flexits]

Sorry, hit the wrong button :-)