 <p>Specific different folders for all paths in all installations and it should work.</p> <p>For example \Delphi XE1 \Delphi XE2</p> <p>or simply use Rad Studio 14.0\ and so forth.</p> <p>Just make sure common files and documents and stuff like that goes into Rad Studio 14.0 as well.</p> <p>So have one main folder for each delphi version and make sure the installer installs everything into that main version folder.</p>