Console. NTInternals. Multimedia Command Strings. MSDN Library Design Tools Development Tools and Languages Mobile and Embedded Development. SystemFileAssociations, Application Registration. Whenever the Shell needs to query for file association attributes for a file type, it creates an array of registry keys.
The Shell checks the following registry keys, in order of decreasing priority. User Customized Key. Windows on Wikibooks. COM+ - The Complete Tutorial by Gopalan Suresh Raj.