Error: "Overflow while converting variant of type (Double) into type (Integer)" (4283571)

This error may appear when clicking on any icon within Spotlight:

Overflow while converting variant of type (Double) into type (Integer)

The connection profile was corrupted.

WORKAROUND 1:
Delete the connection profile through Spotlight (File - connect).
When you delete connection profiles, you also need to delete folders for those connections from the Spotlight client machine. This also applies to deleting connection profiles for which the UDB Auto Monitor Nodes option is selected. Profile folders have the same names as their connections.

To determine the path to the folders "Profiles" that contains them, check the Spotlight console "Options" window. The path is shown in the "File locations" pane.

The window is opened by selecting View | Options | Spotlight Console.

The default path to the "Profiles" folder is as follows:
C:\Documents and Settings\All Users\Application Data\Quest Software\Shared\Profiles 

Once deleted, recreate the connection profile through Spotlight and reconnect.

WORKAROUND 2

In one case the problem disappeared after disabling the Shared Memory Management.

STATUS:
Waiting for fix in a future release of Spotlight.