Adding Custom Menu Links
Adding Menu link to MSCRM is as easy as adding nodes to xml file. This can be done by editing ISV.config file located at path <wwwroot>/_Resources/.
MSCRM provides CustomMenu tag that can be introduced at:
1. The MenuBar element inside the Grid element can contain an ActionMenu element and one or more Button elements.
2. The MenuBar element inside the Root element can contain a CustomMenus element.
3. The MenuBar element inside the Entity element can contain a CustomMenus element.
Note: Adding menu Items to existing menu like “New” is not possible through ISV.config file as it clearly separates CustomMenu and default menu and not supported in MSCRM 3.0.
Adding Menu Links to Application Menu Bar
Adding Menu Links to Entities:
<Entities>
<Entity name="account">
<MenuBar>
<CustomMenus>
<Menu Title="Custom Menu">
<MenuItem Title="Custom Application Window" Url=http://www.microsoft.com/customwindow.aspx ValidForUpdate="1" ValidForCreate="0" AvailableOffline="false" /> />
</Menu>
</CustomMenus>
</MenuBar>
</Entity>
</Entities>
Adding Action Menu Links to Grid:<Grid><MenuBar><ActionsMenu><MenuItem Title="Coming Soon..." Url="http://www.microsoft.com" WinMode="1" /><MenuSpacer /></ActionsMenu><Buttons><Button Title="Test" ToolTip="Info on Test" Icon="/_imgs/ico_18_debug.gif"Url="http://www.microsoft.com" WinParams="" WinMode="2" /><ToolBarSpacer /></MenuBar></Grid>

Where exactly is the *.xml menu file for an instance of CRM in the Enterprise edition?
Is it possible to change existing menu text. Change “Close Opportunity” to “Complete Opportunity”?
Hi ayaz,
when i tried this in a system entity like quote it works but whenI am trying the same in a custom entity it is not working and giving me an error “Could not complete the operation due to error 80020101″ is custom menu is not supported in custom entities or I am doing something wrong ?
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