Some users have reported that his WinXP system computer will occasionally appear "Rundll32.exe application error" prompt, sometimes it will appear when booting, sometimes it appears in the running of the computer, what is this? What about the problem? After analysis, I think this problem occurs because the Rundll32.exe program in the computer is destroyed. Let's take a look at the specific solution.
What is Rundll32.exe?
The Rundll32 process is a process that we can often see. This process is often exploited by viruses, and "execute 32-bit DLL files". Its role is to execute the internal functions in the DLL file, so in the process, there will only be Rundll32.exe, there will be no DLL backdoor process, so that the process is hidden.
If you see multiple Rundll32.exes in your system, don't panic, this proves how many DLL files are started with Rundll32.exe. Of course, what these DLL files are executed by Rundll32.exe, we can all find them from the place where the system is automatically loaded.
Rundll32.exe function prototypes used:
Void CALLBACK FunctionName (HWND hwnd, HINSTANCE hinst, LPTSTR lpCmdLine, Int nCmdShow);
command line which The usage method is: Rundll32.exe DLLname, Functionname [Arguments]
DLLname is the name of the DLL file to be executed; Functionname is the specific export function of the DLL file to be executed before; [Arguments] is the specific function of the export function parameter.
Experiment with restarting the machine with Rundll32: Click "Start - Program - Ms-Dos" & rdquo;, enter the Dos window, then type rundll32.exe user.exe, restartwindows, then press Enter, this You will see that the machine has been restarted!
RUNDLL.EXE
here to note three points:
1.Dll file name can not contain spaces, such as the file is located in c: \\ ProgramFiles \\ directory You have to change this path to c:\\Progra~1\\;
2. The comma between the Dll file name and the Dll entry point cannot be less, otherwise the program will go wrong and will not give any information!
3. This is the most important point: Rundll not be used to call the return value parameter containing Dll, e.g. Win32API in GetUserName (), GetTextFace () and the like. In Visual Basic, an instruction shell for executing an external program is provided, in the format: Shell “command column”.
If you can use the Shell command with Rundll32.exe, your VB program will have the effect that it is difficult or impossible to achieve with other methods: still take the restart as an example, the traditional method requires you to first in the VB project. Create a module, then write a declaration to WinAPI, and finally call in the program. And now just one:
Shell & ldquo; rundll32.exe user.exe, restartwindows & rdquo; to get it!
In fact, Rundll32.exe has a unique advantage in calling various Windows control panels and system options.
The above is about the system in the & ldquo; Rundll32.exe application error & rdquo; solution, if you show the same problem in the process of using computers, you can try to solve using the above method It is best to use anti-virus software to kill anti-virus before operation.
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