Microsoft CRM 4.0 Update Rollup 7 and "Internet Explorer has blocked this site from using an ActiveX control in an unsafe manner."

Rollup 7 adds a new “Configure CRM” button to setup the Outlook client. The button uses an ActiveX control to read your CRM Outlook client, which can causes IE to display "Internet Explorer has blocked this site from using an ActiveX control in an unsafe manner."

This occurs when you have the Microsoft Office Outlook installed but not configured, or if you are connecting to an organisation other than the organisation for which Microsoft Dynamics CRM for Microsoft Office Outlook is configured.

This issue is mentioned in http://support.microsoft.com/default.aspx/kb/976539

A solution is mentioned here http://support.microsoft.com/kb/2004601

You can either change the IE security zone on the client or update the registry on the server. To update the sever registry, follow these steps:

1. Open Regedit
2. Navigate to:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSCRM
3. A a new 32bit DWORD called DisableOutlookSetupLink
4. Set the value to 1 to disable the CRM for Outlook button for all users.