Dat file opening issue

[GoogleCodeExporter]

Describe the issue you're having:
When i open dat video file, the fail is occured:
missing registry key for video file extension.
File does not open automaticly (without putting the source filter).

How can the issue be reproduced? Sample File?
Open dat video file from explorer.

What version of the product are you using? In which Player?
Graph Studio

Please provide any additional information below.

I need you to register dat video file extension to open with your splitter in 
the properties.

Original issue reported on code.google.com by Kozlov.S...@gmail.com on 2 Dec 2011 at 11:51

[GoogleCodeExporter]

".dat" is a very generic extension for all sorts of data files, and adding it 
to a list of extensions is not a good idea.

Besides, players are linked to file extensions, not filters.

Original comment by h.lepp...@gmail.com on 2 Dec 2011 at 11:54

• Changed state: WontFix

[GoogleCodeExporter]

If there is no protocol in the file name, the Filter Graph Manager looks in the 
registry for entries with the key HKEY_CLASSES_ROOT\Media 
Type\Extensions\.ext\, where .ext is the file extension. If this key exists, 
the value Source Filter contains the CLSID of the source filter, in string 
form. Optionally, the key can have values for Media Type and Subtype, which 
give the major type and subtype GUIDs.

http://msdn.microsoft.com/en-us/library/windows/desktop/dd377513%28v=vs.85%29.as
px#file_extensions

Original comment by Kozlov.S...@gmail.com on 2 Dec 2011 at 11:59