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 Problems in Third-Party Libraries
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     If you use third-party libraries in your program, you may not have
     access to the source code for the library.  What if there is a protected-
     mode violation in the library?  Here are some solutions:

     .  Seek assistance from the library vendor.  Problems are usually
        easy to correct and rarely require maintenance of a distinct version
        for protected mode.

     .  If the violation is in a small module, you may be able to
        write a replacement for that module.  The CA-Clipper/ExoSpace
        library, EXOSPACE.LIB, includes replacement modules for violations in
        CA-Clipper and the Microsoft C 5.1 runtime libraries.

     .  Execute the library in real mode.  You can either link the
        library as a separate program and communicate with interrupts, or you
        can use other special functions from the CA-Clipper/ExoSpace library
        for managing memory and performing inter-mode calls.