All VX releases are side-by-side compatible, which means multiple releases can be registered, and therefore active, at the same time. However, you can choose to have only one active release, either a particular flow or version.
The following procedure shows an example that removes the registration for PADS VX.2.5 and replaces it with PADS VX.2.6.
You have at least two VX releases (PADS VX.2.5 and PADS VX.2.6 in this example) installed.
You have administrator privileges on the system.
The registrator.exe program runs from the PADS VX.2.5 installation tree with the -clean option and removes the PADS VX.2.5 registration and items from the Start menu.
The registrator.exe program runs again from the PADS VX.2.6 installation tree and creates the PADS VX.2.6 registration and Start menu items. PADS VX.2.6 becomes the new default release. An asterisk preceding the pathname in the Release Switcher identifies the current default release.