RCB does not support Windows UNC (Universal Naming Convention) paths, for example, \\host\share\path.

To specify a remote file server location in RCB, convert the UNC path to a mapped drive using Windows' map network drive functionality, and use the mapped path in an RCB buildspec, for example, Y:\share\path.

Launching multiple instances of RCB on Windows is not supported. Attempting to launch multiple RCB instances may result in an error “The process cannot access the file because it is being used by another process.”