AppSync & AppLink interoperability?

Hello,

My users run a Thinstalled program that has various dependencies in the form of AppLinked Thinstall binaries:

Main_Program.exe

Dependencies/Foo.exe

Dependencies/Bar.exe

During normal operation, Foo.exe and Bar.exe are never run by the users, although they are in the RequiredAppLinks section of Main_Program.exe's package.ini.

My question is: how can I get Foo.exe and Bar.exe to update via AppSync? Do Foo.exe and Bar.exe have to be each executed individually, for them to be AppSync'ed?

Thanks