The 4D Internet Commands along with various other native plugins and components have been made obsolete through out the progressing versions of 4D in favor of native features integrated into the 4D application. With 4D 21, all of the major functions provided by the 4D Internet Commands plugin are reproducible with native 4D functions and as such the plugin is obsolete and no longer supported in this version. If needed, the plugin from 20 will still work in a 4D 21 database, but it is recomended to take advantage of the new class replacements.