When installing Skype for Business Server 2015 Debugging Tools on a customer system, the installation failed with the following error:
“Skype for Business Server 2015, Debugging Tools Installation or uninstallation requires that Microsoft Visual C++ 2015 x64 Minimum Runtime – 14.0.23026 Package is already installed. Either use Setup.exe for installation or run vcredist_x64.exe included with the product to install the redistributable.”
What the installer is looking for clearly isn’t available on the server.
Download Microsoft Visual C++ 2015 x64 14.0.23026 from here.
Install it, re-run the Debugging Tools Setup and it will install successfully.