How to profile for dll's

Hi,
I am new to ANTS profiler..I have question here..

Can i profile dll's not exe..

I am using nunit to run my cases on particular dll..

i wanted to know the how much memory is cumsuming for particular functions in DLL..

For ex my dll is "A.dll" and my Unit test case on "A" is "B.dll".

I want to collect the memory numbers for functions in "A.dll" if i run any cases from b.dll that was related to some function in "A.dll"

Please some body help me with this.