The ##PR tag denotes a project definition. The project definition is included in the default page of the compiled help file. ##PR tags may only appear in the SQLHelp.ini file. Multiple lines are permitted and will be concatenated together to form the full project definition.
Since the ##PR is not legal SQL syntax, it must appear between comment tags. The tag may be between multiline comment tags (/* ... */), but only the first line will be read. If the ##PR line is intended to be a multiline comment, a ##PR must appear on the line immediately before the text to form part of the comment.
-- ##PR Comment
Where Comment is the description of the database project
-- ##PR This project forms the database procedures for the transaction processing
-- ##PR system for our new book store. Only those procedures relating to the sale
-- ##PR of merchandise are included. For other items, including web logs and historical
-- ##PR analysis, please refer to other projects.