Symptom

When installing BarTender, you may see the following message during the installation process.

When the option to Ignore is selected, the installation will continue and complete, however, when you open BarTender, you may see one of the following error messages:

Environment

BarTender 2021 R1 to R3

Installations on M1 Mac Computers

Answer

Please download an updated revision of BarTender. Once you have the new installer, please do the following:

1. Uninstall BarTender 2021 and reboot the system.
2. Install BarTender using the new installer you just downloaded.

If you are unable to update to the newest revision due to a validated system or the like, here is the legacy fix for Revisions 1 - 3:

1. Uninstall BarTender 2021 and reboot the system.
2. Install BarTender 2019
3. Upgrade to BarTender 2021 (when you get the error message during install, ignore and continue)
4. Then, take the ShellExtension.dll from another computer with a working Bartender 2021 and replaced it in the computer with the issue
5. Reinstall: Visual C++ 2019 and .NET Framework 4.7.2
6. Then run a repair on BarTender 2021; this allows the installation to work.

Running Windows under Parallels on an M1 Mac

Apple Silicon runs ARM-based processors rather than x86, requiring different virtualization.

BarTender installations on a Parallels virtual machine will result in the MFCM12OU.dll system error.

You may attempt to re-install .NET to get it running. However, BarTender is not supported for M1 Apple Silicon systems and we cannot provide troubleshooting beyond this. See the Additional Resources section below for more details.

Additional Resources

BarTender and Macintosh Systems

Installation Failure: ShellExtension.dll Failed to Register.