Let me explain a little further.

wkixcrpt.exe does not create a console - it it the console-less version of KiXcrypt.

However, if you execute a script or statement which itself creates a console then one will appear.

If you are SHELLing the command then suppress the output. Something like:
Code:
Shell "%COMSPEC% /C RunAsCommand ... >nul: 2>nul:"