Stop SetVolumeMountPoint from opening file explorer

Question

I am using SetVolumeMountPoint to mount a vhd to a drive letter of my choosing. The problem is that when the vhd is mounted file explorer automatically opens at the new drive directory. This is a problem for me as I need my programs to remain on the foreground and sometimes the spawned file explorer becomes part of the foreground.

https://learn.microsoft.com/en-us/windows/desktop/api/winbase/nf-winbase-setvolumemountpointa

Thoughts?

UPDATE:

I programmatically set the noautorun registry key using these two methods before mounting my vhd:

        /// <summary>
        /// Removing file explorer auto run for the given DriveLetter so that when a vhd is mounted file explorer doesn't open
        /// </summary>
        /// <param name="DriveLetter"></param>
        private void RemoveFileExplorerAutoRun(char DriveLetter)
        {
            var KeyPath = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer";
            RegistryKey AutoRunKey = Registry.CurrentUser.OpenSubKey(KeyPath, true);
            var DriveLetterValue = DriveLetter - 'A';

            if (AutoRunKey != null)
            {
                RemoveFileExplorerAutoRun(AutoRunKey, DriveLetterValue);
            }
            else // create key as it does not exist
            {
                AutoRunKey = Registry.CurrentUser.CreateSubKey(KeyPath);
                RemoveFileExplorerAutoRun(AutoRunKey, DriveLetterValue);
            }
        }

        private void RemoveFileExplorerAutoRun(RegistryKey AutoRunKey, int DriveLetterValue)
        {
            if (AutoRunKey != null)
            {
                AutoRunKey.SetValue("NoDriveTypeAutoRun", DriveLetterValue);
                AutoRunKey.Close();
            }
        }

Answer 1

Cleanest way seem to be to catch RegisterWindowMessage("QueryCancelAutoPlay") message by your foreground window and return TRUE from your window procedure.

https://learn.microsoft.com/en-us/windows/desktop/shell/autoplay-reg

EDIT: If foreground window is not your application window, then I would recommend against editing registry, since it is global state, whereas you need just temporary autorun bypass.

Besides windows hook, mentioned in other answer, I would suggest registering your implementation of IQueryCancelAutoPlay interface in running object table