Window Refresh

I need a command to Refresh all windows. For example, when you go into folder options and apply a change you can see all explorer-based windows "flicker" as they are refreshing the new settings. My program make changes to folder options through the registry, so I need a command to refresh any open windows take to effect on the new settings. HELP...:confused:

I use this code to refresh the Desktop and Explorer when I change an icon association.

VB Code:

Private Declare Sub SHChangeNotify Lib "shell32.dll" _
           (ByVal wEventId As Long, _
           ByVal uFlags As Long, _
            dwItem1 As Any, _
            dwItem2 As Any)
Private Const SHCNE_ASSOCCHANGED = &H8000000
Private Const SHCNF_IDLIST = &H0&
 
Public Sub RefreshSystemIcons()
    SHChangeNotify SHCNE_ASSOCCHANGED, SHCNF_IDLIST, 0, 0
End Sub

Greg