Enable extensions in sqlite3 with C#

So i am trying to get Spatialite working under Unity. I am using a 64bit Pc which made more Problem so far. but they seem to be resolved. Now when I try to load the Spatialite extension I get a not authorised exception. After a whole lot of research it seams that enable_load_extensions is disabled in my 64bit sqlite3.dll. Now I found some ways to enable this extension with java and python but none with C# wich I am forced to use. Since I need to resolve this fast I wanted to ask if some of u have a clue how to solve this. Or a 64bit sqlite3.dll with enable_load_extensions enabled.