-u   Update File Time/Date to Current Time/Date

This option will assign the current time and date to the file that you are
compressing.  If you  do not use  this option, the  time and date  of  the
compressed file will be set to the  time and date of the  original file by
default.

         C:\PKWARE> PKLITE  -u  FILE.COM  B:

In the example shown above, the program FILE.COM will be compressed and the
compressed version of  the program  will be  located on the  B: drive.  The
compressed  file will retain the same name (FILE.COM) as the original file.
However, the  time and date will be updated to the current time and date at
the time the file was compressed.