Migrating a Web Server to IIS 5.0

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Deciding to Port or Rewrite CGI Applications

An important decision you must make is whether to simply port a CGI application, making minimal changes needed for it to run on IIS 5.0, or to rewrite it as an ISAPI extension or an ASP application. Two basic considerations are as follows:

  1. Performance vs. Development Work.  Expected performance gains compared to the work involved in rewriting the application.
  2. Effort to Develop and Maintain.   Relative ease of developing and maintaining the application over time.

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