Can't get dhtmlx vault to work in .NET

I have tried to follow provided directions to get this to work but it seems like some things are missing, like how to register the handlers, etc. Also, the example handlers were all using the same MyHandler class name without use of partial so I had to rename them according to their filename.

If you look at the files in this zip file, I have attached all the dthmlx vault code and a view that is making use of it, and the snippet of code I included in web.config to attempt to register the handlers.

I get an error when attempting to upload any file with this component.

What am I doing wrong? Please help, and thanks in advance.
Sample.zip (34.4 KB)