Blade API Monitor, a developer spy tool, can trace and log API and ActiveX interface with parameters It can trace any exported functions of any DLLs, log all API call information, predefine 8000+ APIs' prototype, and it supports MAP PDB Files, etc.
License: Shareware
OS Support: WinXP, Win2003, Win2000, Win Vista

Comm Echo is a free debug tool for serial port (RS232), TCP/IP andUDP port communication It's for loopback test.
License: Freeware
OS Support: WinXP, Win2000, Win Vista

Debugger for MySQL is an affordable tool that will tremendously facilitate your regular debugging and testing work and will help you always write stable and clean code It's an ideal "one-stop" solution for managing MySQL procedures and fun.
License: Shareware
OS Support: WinXP, Win2000, Win Vista

Tail4win - windows tail It can monitor changes to files and display the changed lines in realtime.
License: Shareware
OS Support: WinXP, Win2000, Win Vista

Decompiler of Visual Basic programs Decompiling forms, pseudo code, native code procedures (with power Pentium Pro disassembler and emulation engine), .
License: Shareware
OS Support: WinXP, WinNT 4.x, WinNT 3.x, WinME, Win2003, Win2000, Win Vista, Win98, Win95

ZigBee Operator is the professional tool to learn, research, develop and test Digi's ZigBee/XBee module It implements both API encoder and decoder for Digi's XBee & ZigBee Mesh and 802.
License: Shareware
OS Support: WinXP, Win2000, Win Vista

Comm Tunnel is a free tool to connect two endpoints It builds a tunnel between two endpoints.
License: Freeware
OS Support: WinXP, Win2000, Win Vista

Bee Explorer is a free tool to explorer all available ZigBee Nodes in search range It supports both AT and API mode.
License: Freeware
OS Support: WinXP, Win2000, Win Vista

Hoo WinTail is a real-time log monitor and viewer for Windows like the UNIX tail command It could capture and display OutputDebugString (Windows Debug API) and TRACE (MS Visual C++ Debug Macro) output as well.
License: Shareware
OS Support: WinXP, WinNT 4.x, WinME, Win2003, Win2000, Win Vista, Win98, Win95

The "Monkey Log Viewer" is a viewer for log files.
License: Freeware
OS Support: WinXP, Win2003, Win2000, Win Vista