Software Deployment

We are in a managed environment and applications are pushed from SCCM to all the users.
They do not have the rights to download/install any new software.
6months back we had installed Adobe Digital Editions 1.7.1 on about 50 machines in the library and today all of them cant move ahead with using the application anymore because as soon they launch the main shortcut, it says software needs to be upgraded and since they do not have rights to install it by themselves, we are now forced to immediately package ADE 1.7.2 and push it across. (Even then when a 1.7.3 comes out, it will create another mess)
It has become so chaotic and frustrating. If updates could be disabled, we can work at our pace and install latest version to all the required systems.
Could anybody help me with disabling these upgrades please.

Edit - To give some more info, I had repackaged the standalone install and all it had was one file and a bunch of registries. Nothing too obviously related to upgrades. I have run procmon after launching the shortcut of version 1.7.1 to check if it is infact accessing any registries or a url.. but that did not lead me to anything. I have packaged the 1.7.2 version and my boss wants me to push it immediately but I do not see a point in doing it when I know this situation will repeat when a new upgrade is released. pls help.