It does the Pklite self-extracting compressions for executables, but
also has a data file mode which can operate through a TSR, compressing
and uncompressing on the fly. I had mixed results with the runtime
compression (and the documentation warns that not all programs will
work with this), but I've found that most of my biggest files are
libraries and documentation anyway. The runtime uncompression seems
to work quite well, even with very large files (eg 400K after
compression), though it can be slow on starting up. This type of
compression can also be used on executables, but I had difficulty with
Turbo C++ when it and its help files were both compressed.
I'm sure Stacker is a better package all-around, but diet is good for
what it is (and the price is right).
Bill
wfsmith@cs.ucla.edu