string directoryToZip = "...";
string zipFileToCreate = "... .zip";
MercatorUi.Wait.WaitStatic.WaitWindow("Bezig met zippen...");
bool test = MercatorZipper.Zipper.ZipDirectory(Api.AddBS(directoryToZip), zipFileToCreate, new MercatorZipper.ZipProgressDelegate(MercatorUi.Progress.QuickProgress));
MercatorUi.Wait.WaitStatic.WaitClear();