These two demo projects Celsius.bdsproj (the Celsius42 assembly) and UseCelsius.bdsproj show how 
a "Celsius" Assembly is built and used with C#Builder. 
Make sure to build the Celsius.dll assembly first, before you can reference and use it with the
UseCelsius project.

Bob Swart (aka Dr.Bob - www.drbob42.net)
Bob Swart Training & Consultancy