To resolve this problem, modify the Windows Vista registry to configure the common file dialog boxes to use shell folder view instead of HTML view to display objects from WebDAV locations. This lets screen reader programs process the items in these dialog boxes successfully. To do this, follow these steps:
1. Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.
If you are prompted for an administrator password or confirmation, type your password, or click Continue.
2. Locate and then click the following registry subkey:
Note If the Explorer subkey is not listed, you must create it.
3. Right-click Explorer, point to New, and then click DWORD (32-bit) Value.
4. In the New Value #1 box, type NoHTMLViewForWebDAV, and then press ENTER.
5. Right-click NoHTMLViewForWebDAV, and then click Modify.
6. In the Value data box, type 1, and then click OK.
Note To disable this registry value, set the NoHTMLViewForWebDAV value to zero (0).
7. Exit Registry Editor.
After you set this registry entry, WebDAV locations are displayed in shell folder view in Windows Vista common file dialog boxes. Therefore, screen reader programs can process the listed items in the same manner in which these programs read the contents of other Windows Vista folders.