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How to make an XP MFC app Windows 7 aware?

Posted on 2011-03-02
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Last Modified: 2013-12-04
I have an MFC application that I built and miantain on XP.
It runs on all Windows platforms, including Windows 7.
When its running under Windows 7, I would like it to run with elevated rights (Run as admin) without the user having to explicitly select run as admin option in the menu.

Any ideas how to do it?
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Question by:yossikally
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Expert Comment

by:gobikannan
ID: 35024426
current (user) account has not an administrator. So better u set your account as administrator rights.
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Todd Gerbert earned 500 total points
ID: 35024507
Ideally you should modify your application to not require administrative privileges - I think the real point of UAC is to encourage developers to write applications that don't unnecessarily depend on administrator access.

You can also add a UAC manifest to your application (see step 6 in this guide: http://msdn.microsoft.com/en-us/library/bb756973.aspx).  The UAC manifest can tell Windows that your program needs to be Run as Administrator, and users will automatically receive the prompt to run elevated without needing to explicitly select the Run As Admin menu option - although there is nothing you can do about bypassing that prompt.
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Expert Comment

by:parnasso
ID: 35024928
In order to fit your needs, you can ask the system for admin priviledges and self elevation programmatically when running in Windows Vista or Windows 7.

FInd the following code as an example:

OSVERSIONINFO osver = { sizeof(osver) };
if (GetVersionEx(&osver) && osver.dwMajorVersion >= 6)
{
        // Running Windows Vista or later (major version >= 6).

	WCHAR szPath[MAX_PATH];
         if (GetModuleFileName(NULL, szPath, MAX_PATH))
         {
               // Launch itself as administrator.
               SHELLEXECUTEINFO sei = { sizeof(sei) };
               sei.lpVerb = L"runas";
               sei.lpFile = szPath;
               sei.hwnd = hWnd;
               sei.nShow = SW_NORMAL;

               if (!ShellExecuteEx(&sei))
               {
                    DWORD dwError = GetLastError();
                    if (dwError == ERROR_CANCELLED)
                    {
                            // The user refused the elevation.
                            // Do someting ...
                        }
                    }
                 }
            }
}

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Hope this is helpful
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