Home | Products | Consulting | Writing | Contact

Download Microsoft Word format

David Ching
Windows Client / System Specialist

Building world-class Windows GUI which meets business requirements the first time
with debugged and maintainable code.

[Dividing Line Image]


  • 5 years as Microsoft MVP - Visual C++ (2007-Present)
  • 20 years of C/C++/MFC, shipping popular Windows driver utilities and applications including IronKey, SanDisk U3, Linksys Control Utility, Logitech SetPoint, Sidekick for Windows, Borland C++ IDE (1990-Present)
  • 15 years of Windows system programming including process injection, API hooking, Accessibility, Windows hooks, multi-threading (1995-Present)
  • 5 years of .NET development, C#, WPF, Winforms, ASP.NET (2005-Present)
  • 2 year of Qt C++ GUI development.  Nokia Certified Qt Developer (2009)
  • 3 years of hands-on project management (2001-2004)
  • 3 years independent developer (circa 2000)
  • American-born US Citizen

[Dividing Line Image]

CONSULTING (2004 - Present)

MyBasis  (02/11 – 08/11).  Enhanced a consumer-facing Windows/Mac GUI utility to control and dump data from a USB device, and to upload it to a web server.  Technologies used:  C++, Qt, Mac PackageMaker, NSIS.

Client Confidential  (08/10 – 12/10).  Implemented an Excel add-in for the creation of financial reports. Technologies used: Office add-in, C#, Winforms.

Cisco  (02/10 – 08/10).  Enhanced software for casino video surveillance. Analyzed Wireshark captures and other symptoms, advised management on possible causes and recommended solutions.  Fixed .msi build system and showstopper threading issues. Architected and built restarter program and health monitoring redundancy.  Technologies used:  Winforms, WPF, C#, sockets.

IronKey  (09/08 – 04/10).   Architecting and implementing the next generation control utility shipped on every IronKey secure flash drive.  Providing Windows expertise to fix blocking issues, such as incorrect manifests and redistributables, exception handlers, signing of the manufacturing driver, etc.  Responsible for implementing Windows system internals such as detecting open file handles when ejecting the device.  Technologies used:  C++, Qt GUI framework, MS DDK.

Embedded Resource Group  (07/07 – 06/10).  Building ASP.NET application to manage timecards, which are entered on the website and saved in MS SQL database and e-mailed to manager for approval.  Building Winforms app to generate Intuit QuickBooks invoices and reports of missing timecards.  Technologies used:  ASP.NET 2.0, Winforms, QuickBooks SDK, C#, SQL Server 2005, Telerik RadControls, Visual WebGUI.

Client Confidential  (01/09 – 08/09).  Implemented two prototypes of a financial patent utilizing QTableWidget and QTextBrowser Qt widgets.  Technologies used:  Qt GUI framework, Nullsoft Installer (NSIS).

Amicus Wireless  (12/07 - 08/08).  Designed and implemented a Windows Control Panel for a WiMAX adapter, featuring a tabbed UI.  The flashy WPF UI far exceeded the client’s expectations in both look and ease of use.  Technologies used:  WPF, Winforms Interop, C#.

PlantSense  (08/07 - 06/08).  Created a dialog-based application to manage a USB probe over a virtual COM port and to send data to a website.    Technologies used:  MFC, Setup API, Serial port, WinInet, C++/CLI, Device Manager.

Star Analytics  (09/07 - 04/08).  Created a console application to prototype consolidation algorithm for hierarchical database. Technologies used:  .NET, C#

Cranite  (08/07 - 10/07).  Created a Windows Control Panel (screenshot) for a wireless security software product, featuring an Office 2007 UI.  Technologies used:  MFC, CodeJock UI library.

Microsoft  (06/07 - 08/07).  Creating several videos explaining Visual C++ topics, including Remote Debugging and VC Visualizers.  The videos are posted on MSDN.

Marvell  (01/07 - 10/07).  Localized a Windows Control Panel for a wireless networking card.

NomaDrive  (09/06 - 01/07).  Rewrote hooking engine of application virtualization software, similar to MojoPac. Created installation wizard and NSIS setup package.  Technology used: C++, MadCodeHook user API hooking library.

SanDisk  (10/05 - 06/07).  Recognized as Windows expert for TrustedSignins engineering.  Wrote IE/Firefox toolbars and MIME filters; developed loaders for browser add-ons that don't require the Windows registry.  Prototyped TrustedSignins security applications using UI skins and wizards.  Shipped DHTML-based UI and desktop icon for U3 USB keys.  Devised simple localization mechanism and supporting tools to quickly translate application into 30 languages.  Prototyped Windows AppBar that docks when USB key is inserted.  Used Crypto API to write a hashing function.  Technologies used:  UI Skin, MFC, GDI, GDI+, ATL, COM, BHO, DHTML, User Mode Hooking, AppBar, Crypto API, XML, Wizard Property sheet.

Logitech  (3/05 - 07/07).  Architected and implemented MenuCast translucent windows, providing 10' UI for MX Air mouse.  Created several Vista gadgets which hosted an OCX control to show status of Logitech devices.  Created Wizard-97 firmware update utility.  Enhanced core of Logitech SetPoint to execute different mouse and keyboard macros depending on the active application.  Created OEM customizations for well-known OEM's.  Technologies used:  Layered windows, Vista gadgets.

SoonR  (08/06).  Created a DLL which provided simple API's to snap a picture with a webcam and save the picture to disk.  Technologies used:  VfW, multi-threading for synchronous API.

Blue Jungle  (03/06 - 11/06).  Enhanced Enforcer module which monitors and restricts Windows desktop applications.  Technologies used:  User mode API hooking.

Qpixel  (9/05 - 9/05).  Designed and implemented a skinned VCR application (screenshot) to demonstrate a Video Capture board.  Technologies used:  UI Skin, MFC, GDI, GDI+.

VelaStar  (8/05 - 2/06).  Created a very small (100 KB) application that presents a Wizard-like UI to download and install all necessary redistributables to run the .NET framework on Windows NT 4.0 or later.  Technologies used:  straight Win32, Nullsoft installer.

Qualcomm  (12/04 - 9/05).  Wrote the UI for the Linksys Control Utility (screenshot) shipping with the Linksys WPC54GX PC-Card and the Airgo Wireless Client Utility (screenshot).  The UI's feature a skinned tab interface, a skinned popup wizard, and a skinned launcher screen for the Setup.  Standard and custom Windows controls are overlaid onto graphical images.  Devised strategy to control Internet connectivity with IPHelper API and NETSH.EXE.  Technologies used:  UI Skin, MFC, GDI, GDI+, IPHelper.

Loyalty Ventures  (6/04 - 7/05).  Wrote an Internet client that interacts with popular browsers in unique ways.  It embeds the Lua scripting interpreter, allowing customization with Lua scripts.  With full functionality packaged in a small 220 KB download, it is extremely easy to deploy.  Wrote an Internet Explorer toolbar.  Wrote an animated sliding "Toast" window similar to those in Instant Messenger apps which uses special techniques for smooth scrolling.  Wrote a 9 KB Internet downloader in VC++ which excludes the C Runtime Library for decreased size.  Technologies used:  Lua, Microsoft Accessibility, User Mode API hooking, Threading, WinInet, WTL, Nullsoft Installer.


[Dividing Line Image]

EMPLOYMENT (2000 - 2004)

Logitech   (5/02 - 5/04).  Managed four developers and was solely responsible for architecting and writing the core functionality of Logitech SetPoint, the driver utility shipping with millions of mice and keyboards (screenshot).  Also managed the development of the Media Desktop full-screen application for listening to music and viewing pictures and videos from a distance of 10' (screenshot).  Coordinated efforts with the localization and marketing teams in Switzerland as well as with QA in the United States.  Technologies used:  VC++, MFC, XML localization, WMP, WinLogon. 

Proxim   (11/00 - 4/02)Managed 3-5 developers responsible for networking software utilities shipping with Proxim Symphony, Harmony, and Orinoco products.  Designed the UI for the developers of the Orinoco Client Configuration Utility, which PC Magazine called, "the best of the three [reviewed utilities]."  Successfully shipped a number of versions, including Harmony 802.11A and Symphony 3.0.  Coordinated efforts among several product groups located throughout the United States and in Europe.  Found and fixed long-standing defects in the codebase.  Technologies used:  VC++, MFC controls, full WinXP support, tray icons.


[Dividing Line Image]


Talking Stocks retrieves stock quotes from the Internet and uses an animated character called Stockman to read them aloud (screenshot).  This innovative Windows application was nominated for the Best Business Application or Utility, 2000 Shareware Industry Awards, featured in On-line Investor Magazine, April, 1999 and received the top (5-star) rating from the prestigious ZDNet shareware site.   Technologies used:  WinInet, worker threads.

Talking Greeting lets users send greeting cards and other personal messages using animated characters like Merlin the Magician, Peedy the Parrot, and other Microsoft Agent animated characters (screenshot).   Created a simple script interpreter to read instructions in the greeting file and drive the Microsoft Agent characters accordingly.  Talking Greeting is extremely popular with children and was featured in the CNET Shareware Dispatch newsletter, March 29, 2000.  Technologies used:  WinInet, straight Win32 programming for aggressive .exe size reduction, worker threads, robust handling of download errors.

RegEditX was included in WINDOWS Magazine's annual "100 Best Shareware Programs", featured  in Brian Livingston's INFOWORLD column, and included on several CD-ROM's accompanying Windows books.   Technologies used:  injection of a DLL into another process, window subclassing in MFC.

CDRCue 2004 is a syntax-highlighted editor for audio cuesheets.   Technologies used:  MCIWnd, object-oriented parsing, Public Key Encryption; my first shareware app.

Goal Time Tracker is a a simple application to track goals and the time spent on them.  Technologies used:   MFC 101; my first MFC app.


[Dividing Line Image]

CONSULTING (1995 - circa 2000)

Mirra   (11/02 - 12/02).  Created Context-menu and Icon-overlay shell extensions.  Technologies used:   ATL, Shell, Internet Helper API

FutureDial   (8/00 - 12/00).  Developed a VideoChat ActiveX control in MFC which transmits and receives pictures of the people who are chatting over the Internet.  The control also lets the users type text messages to each other - the text is colored and italicized using a Richtext control.   Also developed an AudioChat application that records the user's voice coming into the PC's microphone, compresses it using GSM, sends it over the Internet, and uncompresses it and plays it on the PC's speakers using the same application.  Technologies used:  MFC, ActiveX, Sockets, RichText, Audio Codec, Wave API

PCTEL   (2/00 - 9/00)  Developed Control Panel applet and Tray icon utility for LiteSpeed adapter.  Developed Installshield Setup program to install the adapter.  Created innovative ways of specifying TCP/IP and other network settings not normally exposed through Windows API's.  Technologies used:  Installshield, MFC, Internet Helper API

Spinway   (5/99 - 12/99).  Created Windows AppBar to show ad banners for free Internet access from K-Mart Bluelight.com.  Created custom dialer that dials the modem to establish an Internet connection.  Programmed the Windows Media Player to display a full-motion MPEG video ad.  Created a Wizard (property sheet) application that facilitated the registration process.  Technologies used:  MFC, RAS, WMP, Property Sheet, Shell

Logitech   (11/95 - 4/99).  Lead Application Developer of Key Commander software shipped with the Logitech keyboards.  The software configures the keyboard's extra buttons, controls Internet Explorer/Netscape Navigator browsers, and controls system volume level.  Technologies used:  MFC Grid, DDE, threads, hooks, transparent windows.

Xerox PARC (1996). Wrote an object-oriented parser to parse the family lineage stored in a GEDCOM file and to display the desired ancestor or progeny tree in a hyperbolic browser (Xerox custom control).  Technologies used:  MFC's CString and CMapStringToPtr classes.

NetObjects (1995). Plugged memory leaks in Fusion Web site editor. Technologies used:  memory diagnostics built into Visual C++ and MFC.

Wells Fargo Bank (1995).  Served as MS-Windows expert to Rae Technology, an Apple Macintosh team, to assess Wells Fargo on-line banking project.  Helped create a prototype for on-line banking project. Technologies used:  bitmaps, memory leak detection, Windows clipboard. 


[Dividing Line Image]

PAST EMPLOYMENT (1987 - 1995)

XSoft, a division of Xerox   (1994-1995) Team Leader of TabWorks, a Program Manager replacement shipped with Compaq PC's. Technologies used:  Visual C++ 2.0, Win32, 256 color palettes.

Media Vision  (1994) Designed and developed a Wave editor application which graphs, filters and plays digital audio.  Technologies used:  Visual C++ 1.0.

Borland Software   (1990-1994).  Designed and implemented the Address Book of a Sidekick for Windows prototype. Project Lead for the Turbo Pascal for Windows Integrated Development Environment, version 1.5. Enhanced environments in Turbo C++ for DOS and Borland C++, versions 2 and 3. Technologies used: C++, Quattro Pro object-oriented application framework, Windows custom controls.

Hewlett-Packard   (1987-1990)Enhanced HP LaserRX, a Windows application which presents performance metrics from HP minicomputers. Technologies used:  Windows 2.0, real-mode memory.

[Dividing Line Image]


University of the Pacific   (1984-1988)

Graduated Valedictorian (3.98/4.0 GPA) with BS in Computer Engineering.

Read about DCSoft Technology
Read the DCSoft Creed
Discuss your project with DCSoft


Home | Products | Consulting | Writing | Contact

Last modified: June 14, 2012
  MVP Logo