A repeated LoadLibrary call occurs an Exceptio vcl160. In BPL.
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.bpl Exception EStyleEngineException module in vcl180 at 0011 cd74.

The Class 'TRzEditStyleHook' is already registered for 'TRzDBNumericEdit.
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The Program hangs now in the memory. I have to kill the process with the taskmanager.

Workflow:
1. Calling LoadLibrary to load an DLL
2. Calling the create function of DLL
3. Calling destroy the function of a DLL
4. Calling FreeLibrary to unload the DLL
4. Calling LoadLibrary to load (same/another) DLL again