Microsoft KB Archive/166168

= How To Use RUNDLL32 to Debug Control Panel Applets =

Article ID: 166168

Article Last Modified on 7/15/2004

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APPLIES TO


 * Microsoft Visual C++ 2.0 Professional Edition
 * Microsoft Visual C++ 2.1
 * Microsoft Visual C++ 2.2
 * Microsoft Visual C++ 4.0 Standard Edition
 * Microsoft Visual C++ 4.1 Subscription
 * Microsoft Visual C++ 4.2 Enterprise Edition
 * Microsoft Visual C++ 5.0 Enterprise Edition
 * Microsoft Visual C++ 4.2 Professional Edition
 * Microsoft Visual C++ 5.0 Professional Edition

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This article was previously published under Q166168



SUMMARY
You can use the RUNDLL32 application that is provided with Windows NT and Windows 95 to debug Control Panel applets. Use the following debug settings (set by selecting Build/Settings in Visual C++ version 4.x, or by selecting Project/Settings in Visual C++ version 2.x and 5.0): Executable For Debug Session: C:\winnt\system32\rundll32.exe

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                             C:\windows\rundll32.exe Working Directory: Program Arguments: shell32.dll,Control_RunDLL [path and name of                                              CPL file] Remote Executable Path and File Name: The two choices for "Executable For Debug Session" are for both Windows NT and Windows 95. You must type in the name "Control_RunDLL" exactly, and you must use the full path and name of the Control Panel applet (.CPL file). You do not have to provide information for "Working Directory" and "Remote Executable Path and File Name."



MORE INFORMATION
The technique described here is subject to change in future versions of Windows and is provided for debugging purposes only. If you want your application to launch control panel applications programmatically, you should use the Control.exe program.

