using dlls on web-site

Hello,
I want to put my dlls on web site.
I don't know how doing so,
since I got a message :
Could not load file or assembly 'aDllFile, Version = 1.0.0.0, Culture =
neutral, PublicKeyToken = null' or one of its dependencies. Failed to grant
minimum
permission request.
Now I am checking it on my own computer (Windows7).
 
Any suggestion?
...