Error handling WLanguage procedure called by zipExtractDirectory WLanguage procedure ("Callback") called if an error is encountered when extracting files with zipExtractDirectory. WLanguage procedure called by zipAddDirectory WLanguage procedure ("Callback") called when adding files with zipAddDirectory. WLanguage procedure called by zipAddDirectory to handle the progress bar WLanguage procedure ("Callback") used by zipAddDirectory to manage the progress of files being added to the archive. WLanguage procedure called by zipAddFile WLanguage procedure ("Callback") used by zipAddFile to manage the progress of files being added to the archive. WLanguage procedure called by zipAddFileList WLanguage procedure ("Callback") used by zipAddFileList to manage the progress of files being added to the archive. WLanguage procedure called by zipExtractDirectory to manage progress bars WLanguage procedure ("Callback") used by zipExtractDirectory to manage the progress of files being extracted from the archive.