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Watcom C/C++(language, product)
A compiler and development tools for multi-platform, 16 and 32-bit applications. Watcom C/C++ 10.0 has an integrated development environment (IDE) and development tools. It includes the SOMobjects Toolkit to enable access to IBM's System Object Model (SOM) and Distributed System Object Model (DSOM). It supports 16 bit MS DOS, Microsoft Windows 3.x, OS/2 1.x, and 32 bit platforms including extended DOS, OS/2 2.x, Windows NT, Win32s, 32-bit Windows 3.x, Novell NLM and AutoCAD ADS/ADI.