PowerPoint slide show opens as edit mode from SharePoint library

Actually and after 3 month of searching the problem I found that the coz of this problem was on registry level as below :

1. Go to start menu and click run "regedit".


2. Open registry and browse to HKEY_CLASSES_ROOT\PowerPoint.Show.8


3. Double click on BrowserFlags key, and change the value to 8 (Default Value = a)

After changing the registry and if the problem does not solved do the following:

1. Go to “C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\XML” or 60 folder in case wss2.0 version.


2. Open the file “DOCICON.XML” using text editor.


3. Locate the line that start with “<mapping value="”ichtmppt.gif”……”" key="”PowerPoint.Slide”"> and change OpenControl attribute to be (OpenControl="")
   
4. Locate the line that start with “<mapping value="”icpps.gif”…..”" key="”pps”"> and change OpenControl attribute to be (OpenControl="")
   
5. Save and close.


6. Open the file “htmltransinfo.xml” using text editor.


7. Locate the line that start with “<mapping extension="”pps”…..”"> and change ProgId attribute to be (ProgId="")
   
8. Save and close.


9. Finally restart IIS and pray to me loool.

This because maybe bug on Sharepoint.opendocument class, so what I did is to remove sharepoint.open function for .pps files.

Salam