Although in an exe we can use global writable variables,
I found there are very little resources on exe programming.
So I decide to solve the problem in another way: try to use
global variables in an app program.
I have heard that a software called ECompXL allows you
to do that, but I never connected to the website...
Are there any other way to use global writable variables
(real global variables, not alternatives)in app program?