I started with Platform Builder 3.0 17 CD Disc Set. I made a Windows CE phone in Tennessee. in 1999. I bought Windows XP Embedded in 2004 a MSDN Subscription.and used my system integrator contract to build XP and .NET Server from source and generate project 'mantis' the SDL files in project 'mantis' could be used in Windows Embedded 2009 which is the same revision 6000 as the contract.