Jitsi
Jitsi (formerly SIP Communicator), available from http://jitsi.org/, is a VoIP, videoconferencing, and instant messaging application for Windows, Linux and Mac OS X. It supports several popular instant messaging and telephony protocols. Released under the terms of the LGPL, Jitsi is free and open source software.
Jitsi is mostly written in Java and is still in beta development.
WPKG Package
32-bit Installer
<package
id="jitsi"
name="Jitsi"
revision="3689"
reboot="false"
priority="1">
<check type="logical" condition="or">
<check type="uninstall" condition="exists" path="Jitsi" />
<check type="registry" condition="equals" path="HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment\PROCESSOR_ARCHITECTURE" value="x86" />
</check>
<install cmd='"%SOFTWARE%\jitsi\jitsi-1.0-beta1-nightly.build.3689-x86.exe" /qn ' />
<remove cmd='"%SOFTWARE%\jitsi\jitsi-1.0-beta1-nightly.build.3689-x86.exe" /qn /uninstall' />
<upgrade cmd='"%SOFTWARE%\jitsi\jitsi-1.0-beta1-nightly.build.3689-x86.exe" /qn ' />
</package>
64-bit Installer
(There is a mechanism instead where you could incorporate this into the same package as above)
<package
id="jitsi-64"
name="Jitsi"
revision="3689"
reboot="false"
priority="1">
<check type="logical" condition="or">
<check type="uninstall" condition="exists" path="Jitsi" />
<check type="registry" condition="equals" path="HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment\PROCESSOR_ARCHITECTURE" value="AMD64" />
</check>
<install cmd='"%SOFTWARE%\jitsi\jitsi-1.0-beta1-nightly.build.3689-x64.exe" /qn ' />
<remove cmd='"%SOFTWARE%\jitsi\jitsi-1.0-beta1-nightly.build.3689-x64.exe" /qn /uninstall' />
<upgrade cmd='"%SOFTWARE%\jitsi\jitsi-1.0-beta1-nightly.build.3689-x64.exe" /qn ' />
</package>