Should I include the manifest file in registry when deploying VSTO Addin?

Hi,

I was wondering if someone out there could help me. I'm developing an
addin for outlook 2007 and I have been testing out the deployment to
other computers. My question is do I need to include the location of
the manifest file in the registry location of my addin project (HKCU
\software\Microsoft\Outlook\Addins\MyAddin) ? The reason why I'm
asking is that I have a registry value "manifest" which has the
location of the manifest file (C:\Program Files\My Project
\MyAddin.dll.manifest). If I delete this registry key and I open
outlook 2007, I cannot see any of my buttons on the ribbon, so I'm
guessing the manifest is needed?

Much appreciated,

Vincent
.