Need Ideas on Authorization from remote server before running program

[Patchworks 0]

I'm trying to setup an application that needs to get Authorized from a remote server before it will run! I'm actually going to have the Application Upload a file and I'm not sure the best way to do that just yet. FTP, etc.

Once the Application uploads a file, I need it to some how authorize that the application is "Authorized" to continue running?

Does anyone have a good ideas how to accomplish this?

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