[Mono-dev] Replacing single dll on the fly

[APS]

I'm experiencing strange behaviours using mod_mono on linux.
I successfully configure and install my web application (composed of 
many dlls) and it runs correctly.
When I find some problem and I modify some library, I have to replace 
the patched dll. If I replace the single dll most of times mono says 
that he can't find the dll (even if it's there) or some other loading problems.
I'll try to investigate and report the errors in a better way but my 
question is: there's some "correct way" for compiling and replacing 
single dlls of a web application in order to avoid problems? (let's 
say "compile dll with some flag","stop apache", "replace dll", "start apache").
Thanks in advance.