azure - MVC Web Role Post Build Event

Question

I'm trying to copy two files to the bin directory to a Windows Azure Cloud Services deployement, I added the below Post-Build event script to the MVCWebRoleCore project properties:

copy /Y "$(ProjectDir)lib\SqlServerSpatial.dll" "$(TargetDir)SqlServerSpatial.dll"
copy /Y "$(ProjectDir)lib\SqlServerSpatial110.dll" "$(TargetDir)SqlServerSpatial110.dll"

Everything looks good locally and the two files are copied, but on Windows Azure the files are not there in the bin directory, (I checked the cloud deployment using RDC to make sure), What am I doing wrong?

Thanks