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I know Rational Rose is ancient, but many universities still require it for software engineering diagrams. Getting the portable version to run on Windows 7 64-bit is tricky due to compatibility issues. Here is the working method.

IBM Rational Rose is obsolete software. This guide assumes you have a legitimate license file. For modern UML needs, consider Visual Studio or StarUML. Title: How to Run Rational Rose Portable on Windows 7 64-bit (Legacy Setup)

Hi everyone,

Install Oracle VirtualBox, put Windows XP on it, and run Rational Rose there. It takes 15 minutes and saves hours of DLL hell. Disclaimer: This is for educational legacy support. Please use modern UML tools if you aren't bound by a curriculum.

Rational Rose requires a 16-bit installer or Jet database engine that doesn't play nice with 64-bit systems.