I use "Uninstallview" by Nirsoft:
http://www.nirsoft.net/utils/uninstall_view.html
a) I removed all my OpenDCL-Studio
b) I Installed 8.0.013 German. UninstallView shows the entries for 8.0.0.13
c) I installed 9.0.0.105 English. Uninstall View show now both entries
Anzeigename Registry-Name Version Registry-Zeit Installationsdatum Installiert f