DomainPassword.c

#include <windows.h>

int WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR cmdLn, int nShow){
	char cmd[] = "nltest.exe /sc_change_pwd:DOMAIN";    // Change DOMAIN to domain name
	PROCESS_INFORMATION procInfo;
	STARTUPINFO startupInfo;
	ZeroMemory(&startupInfo, sizeof(startupInfo));
	startupInfo.cb = sizeof(startupInfo);
	
	//chdir("%windir\\Sysnative");
	Wow64DisableWow64FsRedirection(NULL);
	if(CreateProcess(NULL, cmd, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &startupInfo, &procInfo)){
		WaitForSingleObject(procInfo.hProcess, INFINITE);
		CloseHandle(procInfo.hThread);
		CloseHandle(procInfo.hProcess);
	}
	
	return 0;
}

DomainPassword.exe.manifest

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
   <ms_asmv2:trustInfo xmlns:ms_asmv2="urn:schemas-microsoft-com:asm.v2">
      <ms_asmv2:security>
         <ms_asmv2:requestedPrivileges>
            <ms_asmv2:requestedExecutionLevel level="requireAdministrator">
            </ms_asmv2:requestedExecutionLevel>
         </ms_asmv2:requestedPrivileges>
      </ms_asmv2:security>
   </ms_asmv2:trustInfo>
</assembly>