In order to initialize threading under DOS I must create a separate unit since I need the initialization and finalization clause. I thought of using a cthreads.pp unit like in unix. However, the TThread implementation resides in the TThread.inc file which is an include in the implementation section of the system.pp unit which is always loaded. This causes the following problem: If someone creates a TThread, the constructor does not know if threading has been initialized (via cthreads) since I can not add a "uses cthreads" clause in the .inc file.

Does anyone have any idea how I can resolve this?

regards,
Andreas

AFAIR the TThread implementation makes use of the ThreadManager (it calls BeginThread and all that stuff).

Initialize is it in the BeginThread subroutine of your ThreadManager as it is done for all other targets that need special initialization. There is a global variable System.IsMultThread for exactly that purpose, I think.

Vinzent.

This is not correct. TThread is in the classes unit.

You don't need to resolve this. The application will stop with an error if you forget to add cthreads and try to start a thread.

There is nothing else it can do.

Michael.