PKLite options
 -a   Always compress files with internal overlays
 -b   Make Backup .BAK File of Original
 -e   Use Extra Compression Method
 -n   Never Compress Files With Overlays
 -o   Overwrite Output File if it Exists
 -r   Remove Extra .EXE Data
 -u   Update File Time/Date to Current Time/Date
 -x   Expand a Compressed File