If use of ADM is the problem, the plug-ins must be rebuilt. There is no choice in this matter. They WILL be fine in Acrobat X, because ADM, although it was no longer supported, was still included. In Acrobat XI it was removed.
If you want to get deeply into the internals, you can prevent the loading of ADM using (I seem to remember) pirequir.h with older SDKs.