Create sub main in a module

My GUI had a button called cmdExport in Form1. I want to create a sub main that refer to this button.
In a new module, I wrote :

Sub Main()
Form1.cmdExport
End Sub

However, when i try to make an .exe with Sub Main as the start up object, there's an error which refer to .cmdExport in Sub Main. The error message is 'Invalid use of property'.
Can someone please help? Prompt answer will be much appreciated.

Thank you.

'add the specification : .value = true
ie:
Sub Main()
Form1.cmdCommand1.Value = True
End Sub


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The Rater

Thanks a lot, Cimperiali !!

Thanks... :)