Adding content type related custom action to a list display form page

Feature to display a custom link in display page in an content type.

Feature.xml

Id="{57258975-0764-43b4-AE55-6415794168FA}"

Title="Display Page Custom Link"

ActivateOnDefault="TRUE"

Description="This feature is used to add a custom link on display page for content type"

Scope="Web"

Hidden="False" >

Element.xml

Id="respondlink"

Location="DisplayFormToolbar"

RegistrationType="ContentType"

RegistrationId="0x0100B7D4482D0BF60A409FEEB760AC7F386A"

Sequence="33445"

Title="Respond">