In the package of the Lotus Quickr Connector HF7 you will find several files which were not existing in earlie versions. These files are not needed for the connectos but have been included unintentionally.
To update the connectors on the Quickr server you just neeed to copy the file QKRCONN.EXE to the path "<Domino data>\domino\html" and replace the existing one. You can delete the "buildinfo.txt" in the same directory as it is no longer needed.
To install the connectors only the QKRCONN.EXE is needed from te ZIP file. You can safely ignore the other files (except the readme file 😉