When attempting to use the import assembly example from http://common-lisp.net/pipermail/rdnzl-devel/2008-February/000192.html
I was having trouble. Basically, the fullname of the assembly was being passed in after I had officially loaded the assembly (it happens one time after attempting to create a new object in the assembly) and it was then trying to load something like AnAssembly, Culture=Neutral .dll
So here i fixed it and you should do something like this to use it: (assembly-path! "C:/path/to/assembly/directory/" "/another/directory/") (install-assembly-resolver)
I took the liberty of making install-assembly-resolver uninstall the previous assembly resolver if there were any. This is most likely the desired behavior since you dont want to install the same function each time.