How to compress files in Windows in batch file?

I can compress files or folders in Windows from GUI by right clicking and selecting "Send to .. Compressed (zip) file..".

Is it possible to do same in batch file?

I have very good experience using 7-Zip. It's open source and does an outstanding job of compression. Lots of formats and strong encryption if you need it. It has both GUI and command line versions.

Your best option would be to head over to 7Zip.org, go to the download section and get the '7-Zip Command Line Version'. It supports most compression formats, is easy to use and free! A command line example to compress a bunch of files with the bak extension to ZIP format would be:

7za a -tzip tinybak.zip *.bak