Writing Custom Activities for TFS Build 2010 (Beta 1) & Implementing a WIX installer that calls the GDR version of VSDBCMD.EXE

For those who are doing a lot of Build stuff and needs to create own Custom Activites fot TFS Build 2010-Beta1, zie the link for a good explanation of How to? Thanks to: Aaron Hallberg.
Link: http://blogs.msdn.com/aaronhallberg/archive/2009/06/01/writing-custom-activities-for-tfs-build-2010-beta-1.aspx

And if you are doing some DB deployment with other tools, then is Wix maybe very helpful for you. More information can be found on the following blog of: Duke Kamstra at:
http://blogs.msdn.com/dukek/archive/2009/10/19/implementing-a-wix-installer-that-calls-the-gdr-version-of-vsdbcmd-exe.aspx