I'd like to create a Web access extension for our TFS 2015 (on premises) install. I'm guessing that the work in a similar fashion to the VSO extensions as perhttps://www.visualstudio.com/en-us/integrate/extensions/overview and are uploaded from the Web access extensions tab in TFS 2015. I've not managed to find anything specific for TFS 2105.
When I try to upload a vsix produced from the sample code I get "Extension manifest file format invalid".
Is what I am trying to do possible inTFS2015? If so is there a TFS 2015 sample anywhere for doing this?