You can disconnect from the Contract Repository at any time by choosing File->Logoff from the menu. The only functions available when you are not connected to a repository are:
You can exit the C++ Expert by choosing File->Exit from the menu. A dialog box will ask you to confirm your action. If you exit without first disconnecting from the Contract Repository, the C++ Expert automatically disconnect from the Repository.
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Figure 3-12 Exiting the C++ Expert