Microsoft IntelliType and IntelliPro – DPLAUNCH.EXE
Dplaunch.exe installs with Microsoft's Keyboards or mice that use the IntelliType Pro or IntelliPoint software. The file is primarily used as a program launcher. If you want to see it in action, Go to your start menu, click run then type this exactly (including the quotes)
"C:\Program Files\Microsoft IntelliPoint\dplaunch.exe" mouse help
Help for your Microsoft Mouse will appear. Dplaunch.exe doesn't necessarily need to be running all the time but it's not harmful to have around.
You'll find support and the latest Intellipoint/intelliType version at http://www.microsoft.com/hardware/mouseandkeyboard/default.mspx.
If you're a developer, you may be familiar with dplaunch.exe as it pertains to DirectPlay. More information on that can be found at http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarplay/html/passingnotes.asp.
Safe
Microsoft