There are several distribution files that you can download. All files include the server- and client applications.

Latest version

LectComm-1.0.dmg 3.8MBA disk image for Mac OS X (contains Mac application bundles).
lectcomm-1.0.tar.gz 3.4MBtar.gz archive for Linux users and others.
LectComm-1.0-Installer.exe 3.7MBInstallation program for Windows (includes the PowerPoint add-in). 3.5MBZIP archive including Windows executables (does not contain the PowerPoint add-in). 430KBZIP archive with source code and build environment. 28KBSource code for the PowerPoint add-in (Visual Studio .NET project).