Yes (the default) enables support for Java classes on the ASP Server, which is required for Chili!Beans. No disables support. To avoid reduced server performance, do not enable Java support unless you are using Chili!Beans.
See also:
Enabling Java Support in "Chapter 3: Managing Chili!Soft ASP"
Changing ASP Server Settings in "Chapter 3: Managing Chili!Soft ASP"
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