What are the best free Scheme implementations that you know about on Windows? [closed]

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Closed 7 years ago.

开发者_如何学JAVA Improve this question

When I wrote best I meant:

• Speed,
• Have an IDE, a debugger,
• Compiling to machine code or some other language,
• Quality of implementation and,
• Completeness.

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On Windows, I recommend PLT Scheme which includes the DrScheme programming environment.