Explorer extensions such as the dlls which set the overlay icons used by Google Drive, OneDrive, Git, SVN, etc. are notoriously buggy. We want programmers to pr

Explorer extensions such as the dlls which set the overlay icons used by Google Drive, OneDrive, Git, SVN, etc. are notoriously buggy. We want programmers to provide these extensions, but the documentation is bad and the interfaces are hard to program (measured by the amount of crashes caused by even a Google authored tool). I think Microsoft should have provided a test suite for these implementors to run or a certification program.