What we would like to do is install multiple Delphi versions on the same machine, those versions are D7, D2010 and DXE.
We had previously D7 and D2010, worked OK tog
Specific different folders for all paths in all installations and it should work.
For example \Delphi XE1 \Delphi XE2
or simply use Rad Studio 14.0\ and so forth.
Just make sure common files and documents and stuff like that goes into Rad Studio 14.0 as well.
So have one main folder for each delphi version and make sure the installer installs everything into that main version folder.