How to allow fullscreen on dual monitors with Flash

NPSWF32.DLLBecause Adobe Flash does not allow the user to move outside the animation or video while in fullscreen mode, slight alterations are needed with each release.  If you are interested in allowing Flash to be in fullscreen mode while working on other things, follow the steps below.  This will only work for Adobe Flash If you have an earlier version, it is highly recommended that you upgrade due to a recently discovered security vulnerability. (upgrade to Adobe Flash

  1. Download a free hex editor if you don’t already have one.
  2. Exit your web browser, and any other applications.
  3. Open NPSWF32.dll in your hex editor. If you are using Windows 7 or Vista, you will have to run the application as an administrator. (Right-click on application executable and click Run as administrator)
    • 32-bit: C:WindowsSystem32MacromedFlash
    • 64-bit: C:WindowsSysWOW64MacromedFlash
  4. Search for 180DA7 (in XVI32, go to Address menu and click Go to).
  5. Look for the following sequence: 48 74 39 83 E8 07 …
  6. Change 74 39 to 90 90.
  7. Before you save this file, you may want to make a backup, just in case something goes wrong.
  8. Save NPSWF32.dll.

Once you are finished, open up a video in fullscreen mode on YouTube or another video site.  You should now be able to work within Word, Firefox, etc., while watching any Flash video in fullscreen!