Lotus Notes Cannot be Pinned To Windows 7 Task Bar

First issue:
1. Install Lotus Notes 8.5.1 with Fix Pack 1 Standard
2. Open the Start menu and go to Lotus Notes
3. Right-click the Lotus Notes icon and select the menu function
"Pin to task

Error: the application icon of Lotus Notesnow doesn't appear in
the task bar.

Second issue:
1. Start Lotus Notes
2. Right-click the application icon at the task bar.

Error: The menu function "Pin to task bar" is missing. Compare
with other MS
and non MS applications.

You can see in this TN.