Sharepoint: Hide "Open with Windows Explorer" option

To remove the “Open with Windows Explorer” option across the entire site:
- Create a custom .ascx file containing only the “ToolbarActionsMenu” Sharepoint rendering template.
- Remove the SharePoint:MenuItemTemplate ID=”OpenInExplorer” node.
- Save the file to C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\CONTROLTEMPLATES and restart IIS, changes will be refreshed.