Two Instances of MS Access

A quick search of the internet and you will find lots of posts about not running two versions of MS Access on the same PC.  This will almost certainly cause our applications to have issues, as our installation setup preconfigures the database engine schematics to use elements of MS Access runtime file.  If it finds access 2003, 2007, 2010 or 2013 on installation it will provide a wrapper that ensures our applications run seamlessly regardless of their software infrastructure.  Our installation setup is 'not designed' to handle the existence of two versions of MS access on the same PC as this is not recommended by Microsoft.