Hi All

Hoping someone can help me out on this urgently (within next 9 hours
would be brilliant if you could)

I've created a word 2007 application add in using VSTO 3 (VS.net 2008
Pro) - that contains smarttags, task panes & a ribbon - deployed via
clickonce (web).

All works great on the dev system but it needs to be demod on a
standard desktop system.

I've signed the assembly and clickonce deployment using a self-created
certificate which has been installed in to the 'Trusted Publishers'
and root certificates stores on the demo machine.

I've browsed to the deploy location (HTTP) and installed the add-in.
In Word the addin can be seen in the inactive add-ins list. I can go
into the COM add-ins management and check the box next to my addin ,
then... nothing.

When checking the registry I can see that the value of HKCU\Software
\Microsoft\Office\Word\Addins\<App>\Loadbehviour has changed from
0x00000002 (2) to 0x00000002 (3) which I think is correct, but when I
restart word to get it to take effect nothing happens and the registry
value has changed back to 2.

From looking around it appears that this is something to do with code
security but I'm really struggling to figure out what exactly is the
problem, and how to solve it.

If anyone could help I would be most most grateful.

Many thanks in advance for any help you can offer

Mark