Volume Integration toolbar is not shown or not working. The Microsoft Office Integration is an Add-in to Microsoft Office 2000 upwards (32bit and 64bit).
Depending on which version of Microsoft Office is installed the add-in will be shown either as a ribbon entry or as a toolbar.

The Integration add-in is only available for Outlook, Word and Excel.
If the add-in fails to appear or work correctly there are two options, but the first thing is to check the bit type of your version of Office. In Outlook, on the 'File' tab, click 'Office Account' and 'About Outlook'. On the screen that appears you should be able to see if it is 32bit or 64bit.

If it is 64bit please follow these steps before moving on to the options below
If it is 32bit you can move on to the options below.
The first option is as below:

The second option is:
If the two options mentioned above do not work you may need to reduce the 'User Access Control' level on the PC. Open the 'Control Panel' and type 'Change User' in the search box. Please consult your IT support before taking the actions in the following Instructions to change the 'User Access Control' level.

Take a note of the current level and then drag the slider down to 'Never notify'

You may need an administrator password to complete this step. Once at the lower level please try Option 1 from above again and then return the 'User Access Control' level to it's previous setting.
If the add-in still fails to appear, please check to see if the dll has been registered.
In Outlook or word go to the add-ins page, this will be different in different versions of office.
Set the ‘Manage’ drop down at the bottom of the screen to ‘COM add-ins’ and click go.

If the dll has been registered your should see the add-in 'CoOI_Volume' if it does not have a 'tick' please enter a tick and click OK.

The Volume integration toolbar should now appear.