To build the CE RPP51 client First modify wince.cmd to point to your platform builder root environment e.g: set _WINCEROOT=e:\wince300 Then install platform builder 3.0 and build a CEPC MAXALL configuration with the name CERDP To build the CE client. Create shortcuts to wince.cmd as follows to setup your build environment: For checked builds: %windir%\System32\cmd.exe /k e:\wince.cmd debug For free builds: %windir%\System32\cmd.exe /k e:\wince.cmd cd common build -cZ cd ..\newclient build -cZ