Update to Installing Multiple CVP Studio Versions

I was installing CVP Studio 12.5 on one of my VMs and referred back to this old blog post of mine when I realized I had missed on critical piece of information. If the installer complains that an upgrade is not supported:

[5-17-2021 17:55:31] Informational: ————————————————————
[5-17-2021 17:55:31] Informational: Starting Studio upgrade procedure…
[5-17-2021 17:55:31] Informational: User presented w/MessageBox: <Upgrade is not supported for Cisco Unified Call Studio.
Please do uninstall the older version and then install the newer version.>
[5-17-2021 17:55:37] WARNING: This installation has been aborted.

Look inside the following registry location: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall In that folder do a search for CallStudio. Export that registry key’s folder and then delete it. After that you should be able to install as many CVP Studio versions as you need. Below is one of my VMs running 3 different versions. The export is as a backup in case you need to restore what you changed.

Screen Shot 2021-05-17 at 9.12.07 PM

Please note that uninstalling CVP Studio after doing this doesn’t really work well or at all. So caveat emptor.


CVP Studio Features Dialog

Multiple CVP Studio Versions on the Same Machine

If you’re like me and do a fair bit of CVP work, including development, and you like to run the same version of Studio as the version you’re deploying against, then you’ve struggled with the fact that CVP Studio doesn’t play very nice with other versions of CVP Studio. Hopefully this blog helps you get all versions of CVP Studio running in harmony on your Windows machine. This method has worked well when going from CVP 12.x to 11.x to 10.x. As well as going the other way around.

  • Backup your registry.
  • If you have a 12.x version of CVP Studio installed:
    • DELETE:HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{763E1DF9-41BC-4C54-9705-A0C6D1594B26}
  • If you have a 10.x or 11.x version of CVP Studio installed:
    • DELETE: [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{763E1DF9-41BC-4C54-9705-A0C6D1594B26}]
  • Install the new version of CVP Studio in a different directory. I like to install mine in c:\cisco\CallStudioxxx, where xxx is the version (e.g. 100, 115, etc).
  • Repoint and create new shortcuts for the various versions.

You will have to repoint your shortcuts, but other than that you should be all good.

CVP Studio Features Dialog

CVP 11 and 12 running side by side.