Activation context generation failed

Add-in Express™ Support Service
That's what is more important than anything else

Activation context generation failed
Error in manifest or policy file  
Robert Apostolico

Posts: 70
Joined: 2013-09-06
Hello All.

I've seen this post:
Previous Side-by-Side Error Post

..but its a few years old; I was hoping maybe something was done to prevent the error??

I'm using version 7.4.4067.

Almost everyone in our office, using our plugin is getting the error. I also see other events being logged from OTHER plugins written by other companies, having the same issue.

What is causing this event?
What does it mean?
How do we fix it?

Thank you!
Posted 19 Sep, 2014 07:58:31 Top
Andrei Smolin

Add-in Express team

Posts: 14966
Joined: 2006-05-11
Hello Robert,

It is caused by Side-by-Side: they expect adxloader.dll.manifest to follow the format described at

There's a workaround: add an XLL module to your project and then delete it. This modifies file names of loader files; that is, you'll also need to modify the setup project(s). With a modified loader file name, Side-by-Side cannot find a manifest file of the corresponding name; this prevents the error from flooding the Event Log.

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 19 Sep, 2014 09:10:24 Top