FairCom provides a powerful feature, the c-treeACE Bound Server model, which allows you to load the c-treeACE Server DLL in your own application space rather than calling c-treeACE functions through remote procedure calls in a separate process. When the c-treeACE Bound Server model sets a rebuild/compact callback function, an unhandled exception could occur during the rebuild or compact operation. The logic has been modified to correct this situation.