Automation GUI ,alternative to batch file

Question

Hello

I am new to C# windows form.

I have some batch files which calls different function to execute flash loader GUI.When this batch file is executing it invoke flash loader GUI and keeps its result in test file.

Instead of writing batch file command on command line and remembering exact sysntax of each batch file.I want to prepare a GUI which will instruct to write command to execute those functions on flashloader (main gui)

My questions are
1) For this scenario do we need to use batch files which will use by testing GUI (Automation GUI) which will ultimately run by flashloader GUI (main GUI).

2) If I am selecting test to run batch file on GUI then how it will actually execute that batch file??

Please clear my understanding so that I can work further.

Viva