Puzzle Express
Puzzle playing shareware software, including crosswords, fill ins, coded crosswords, word search puzzles and logic puzzles.
http://www.puzzlexpress.com

Cruciverbalist
For the Macintosh, by West Pole Software. Contains documentation and information.
http://members.aol.com/westpolesf/cruciv.html

Crossword Weaver
Make crossword puzzles using your words. Two styles of puzzles. Multiple puzzles from the same list. Different difficulty levels. (Windows.)
http://www.crosswordweaver.com

Crossdown
Crossword construction tool. [Windows].
http://www.crossdown.com/

Crossword Studio
Crossword creation tool aimed at the educational market. Can create crosswords with artwork, color and sound. [Windows and Mac OS]
http://www.nordicsoftware.com/web/product_index/crossword_studio

Crossword Express
A crossword puzzle compiler. [Windows and Macintosh]
http://www.crauswords.com

Crossword Maker
Web application to create simple png crosswords. [Windows]
http://www.pivari.com/crossworddoc.html

TEA
Word pattern searcher useful for solving crossword clues. [Windows]
http://www.bryson.ltd.uk/tea.html

Wordplay Wizard
Cryptic clue constructions aid. [Windows]
http://www.bryson.ltd.uk/wiz.html

Crossword Compiler
Aimed at both educational and professional market. Provides downloads, ordering, screenshots, and company information. [Windows]
http://www.crossword-compiler.com/

Qxw and Crux
Free crossword constructor and grid filler. [Linux]
http://www.quinapalus.com/cruciverbal.html

WordFind
Word pattern searcher. [Windows]
http://www.andyscouse.com/pages/wordfind.htm

FineCrosser
Fully automatic crossword puzzle making tool. News, program downloads, dictionary add-ons. [English and Russian] [Windows]
http://finecrosser.com/

Crossword Forge
Crossword and word search construction software. Overview, downloads, purchase, reviews, support. [Mac and Windows]
http://www.solrobots.com/crosswordforge/index.html

Crossword Wizard
Designed for the educational market. [Windows]
http://www.4mation.co.uk/cat/crosswiz.html

Online Crossword Game Designer
Create and publish crossword games online.
http://www.crossworddesigner.com

Sympathy
High specification crossword construction tool. [Windows]
http://www.crosswordman.com/sympathy.html