RegexBuddy
RegexBuddy is your perfect companion for working with regular expressions. Easily create regular expressions that match exactly what you want. Clearly understand complex regexes written by others. Use plain English building blocks instead of or in addition to the standard regex syntax. ... Debug without guesswork by stepping through the actual matching process. ... Collect and document libraries of regular expressions for future reuse. ... Search and replace through files and folders with built-in grep.
http://www.regexbuddy.com/cgi-bin/SetupRegexBuddyDemo.exe - 3Mb - Download - Screenshot

Altova Professional XML Suite
Save half off the price of the five leading XML developer tools! The Altova Professional XML Suite 2006 is a complete XML development toolset that delivers tremendous functionality at a special price. It includes Professional Editions of XMLSpy, MapForce, StyleVision, and SchemaAgent, plus the... Altova MapForce 2006 Professional Edition is the premier XML/database/flat file data mapping tool that converts data on the fly and auto-generates custom data conversion code in XSLT 1. ... Altova XMLSpy 2006 Professional Edition is the industry leading XML development environment, providing...
http://www3.altova.com/download/2006/XMLSUITEProf2006.exe - 16Mb - Download - Screenshot

Oraspeed
Using this Oracle IDE you can write and test Queries. Create, Compile, Execute and Debug your PL/SQL Programs. Execute Anonymous PL/SQL Blocks. Create/Edit Database object using advanced wizards. TKProf, PL/SQL Profiler, Parent Child Tables Data Explorer,Built-in reports, BLOB Editor and much more. ... This database tool can improve your productivity multifold regardless of whether you are a Programmer or Application Developer or Business Analyst or DBA. ... SQLNet. ... ora Editor and TNSNames. ... ora Editor can be very handy.
http://www.oraspeed.com/oraspeed24-setup.exe - 11Mb - Download - Screenshot

AspToDll
Have you been worrying about where to find a suitable tool to encrypt your ASP source codes? Writing ActiveX DLLs by yourself is such a big job both in development and debugging. Encryption by screnc. exe, the Microsoft encryption tool, is too simple to be decoded. ... ASPTODLL is a professional ASP encryption tool which can satisfy your requirements. ... Generally there is a 30%-40% improvement in efficiency. ... 2) Compiled codes use less system resources, therefore the performance of the whole system can be improved.
http://www.asptodll.com/AspToDllSetup.exe - 2b - Download - Screenshot

Perl Express
A free integrated development environment (IDE) for Perl with multiple tools for writing and debugging your scripts. It features multiple CGI scripts for editing, running, and debugging; multiple input files; full server simulation; queries created from an internal Web browser or query editor;... It has a customizable code editor with syntax highlighting, unlimited text size, printing, line numbering, bookmarks, column selection, a search-and-replace engine, multilevel undo/redo operations, and so on.
http://www.perl-express.com/PeSetup25.exe - 3Mb - Download - Screenshot

DzSoft Perl Editor
DzSoft Perl Editor is a tool for writing, editing, and debugging Perl/CGI scripts. It has a comfortable and intuitive interface both for beginners and advanced programmers. DzSoft Perl Editor is deceptively simple, but it is really a very powerful tool. ... The program can upload your script to FTP, export the source to HTML to publish on your web site, find errors in your script in a moment. ... With DzSoft Perl Editor you can run a script and see the result immediately in just one click (you dont even have to run a web server to test a CGI script in the browser)!
http://www.dzsoft.com/download/dzperl57.exe - 2Mb - Download - Screenshot

PHP-Script-Logit
PHP-Script-Logit is a logging tool for PHP debugging. For those of you who, like me, develop PHP in Notepad, it's really nice to have a little logging tool to keep a watch on what is going on in my PHP scripts. Just use the simple Logit function together with this desktop tool to monitor your... The PHP logging script is under ten lines of PHP. ... The desktop app is very simple and requires no installation.
http://free-backup.info/apps/php-script-logit.exe - 173Kb - Download - Screenshot

dncSoftware
dncSoftware is an easy to use DNC software program that makes CNC file transfer very easy to use. Up to 32 CNC machines. Includes many DNC debugging tools, including protocol analyzer, example DNC settings and terminal window. NC Code editor with code transformation tools.
http://www.dncsoftware.net/download.htm - 1Mb - Download - Screenshot

Deleaker Add-in for Visual C++
Deleaker is a useful add-in for Visual Studio 2003-2005 that helps you to analyze programming errors, many of which are unique to Visual C++. Deleaker is a great tool for Visual C++ developers who occasionally have trouble detecting resource leaks and debugging their applications. ... Plenty of tools exist to help track down memory leaks, but there are very few good tools to help track GDI resource leaks that can ruin performance on any Windows operating system. ... Next comes the most important point: when your application exits, Deleaker will provide you with a list of GDI objects that...
http://www.deleaker.com/download/DeleakerSetup.zip - 657Kb - Download - Screenshot

AddrMon
AddrMon is a network tool that can be used to debug or monitor a network or see if host computers are online. Addrmon can PING (Packet INternet Groper), Traceroute or Monitor a single or multiple host computers simultaneously. PING a computer to determine whether a particular IP address (host)... Addrmon is a small but useful utility that is easy to use and customizable. ... Best of all AddrMon is available free of charge and runs fine without installing anything! ... AddrMon doesn't create any new registry-keys, change system settings or create hidden files on your computer.
http://www.bpsoftware.com/download/addrmon.zip - 535Kb - Download - Screenshot