To add the Software Update Wizard DLL, wuw4.dll, to your C++ project, perform the following steps and recompile your application:

1. #include"webupdate.h" in the source file that makes the update check.
   
2. Add the supplied wuw4.lib file to your Project Settings / Linker Dependencies.
   
3. Alternatively, dynamically load wuw4.dll withLoadLibrary(), get a pointer to the WebUpdate() funcition usingGetProcAddress() and then dynamically call it using the URL of your update script as the argument passed toWebUpdate().
   
4. To initiate an update check from your code, call one of the exported functions provided - for example:
   WebUpdate("https://www.mycompany.com/myscript.txt");

Alternatively, ensure the supplied stub file, wuwstub.exe, is located in the same folder as your application and call it as a child process using ShellExecute() or similar:

HINSTANCE nRetVal;
if( (nRetVal=ShellExecute(NULL, NULL, strWuStubPath, "wuw/demoscript4.txt", NULL, SW_HIDE)) <= (HINSTANCE)32)
{.. etc..

Next Steps...

Having integrated the Software Update Wizard with your code, the next step is to write your first update script: