New in version 3.10.

Extra PATH locations that should be used when executing add_custom_command() or add_custom_target() when using the Visual Studio 9 2008 (or above) generator. This allows for running commands and using dll’s that the IDE environment is not aware of.

If not set explicitly the value is initialized by the CMAKE_MSVCIDE_RUN_PATH environment variable, if set, and otherwise left empty.