In 4D Compiler, you have an option that allows you to merge your compiled database with a 4D Runtime Volume and create a stand-alone, executable application. These applications can then be distributed to your clients. Check out what the different versions of 4D Runtime can do for you.
* 4D Runtime Volume is called 4D Engine in 4D versions prior to 4D 2004.
MacOS:
G3 or better processor
Mac OS v10.2.8
256 MB RAM minimum
800 X 600 monitor resolution
Windows
Pentium II minimum
Windows 2000, Windows XP.
256 MB RAM
800 X 600 monitor resolution