Extension Table

[This is preliminary documentation and subject to change.]

The Extension table contains file extension servers information that must be generated as a part of the product advertisement. Each row generates a set of registry keys and values.

The Extension table has the following columns.

Column	Type	Key	Nullable
Extension	Text	Y	N
ProgId_	Text		Y
ShellNew	Text		Y
ShellNewValue	Text		Y
Feature_	Identifier		N
Component_	Identifier		N

Columns

Extension: The extension associated with the table row. The extension can be up to 255 characters.
ProgId_: Program ID associated with this extension. If present, the ShellNew key is created under this key — otherwise it is placed directly under the extension key. Foreign key into the ProgId table.
ShellNew: Subkey for the type of ShellNew Data: FileName, Command, Data, or NullFile.
ShellNewValue: Value written for ShellNew. May reference Feature/Component.
Feature_: External key into the Feature table specifying the feature that provides the extension server.
External key to column one of the Feature table.
Component_: External key into the Component table specifying the component whose key file provides the extension server.
External key to column one of the Component table.

Remarks

This table is referred to when the RegisterExtensionInfo action or the UnRegisterExtensionInfo action is executed.