SQL 2008 Replication on a x64 machine using x86 replication DLL's

We are developing an applicaiton that uses SQL replication. We also have DLL's in our project that call unmanaged C++ librairies. (We can not get away from this).
I have done the data replication and it works great when ran in "Any CPU" my machine is a x64 machine. However when I went to integrate the other DLL's that the project needs they have to run in x86 mode. Everything works except SQL replication when compiled in x86. I get class not found error. I believe this is because since my machine is x64 the replication dlls are for a x64 machine.
Is there a way I can use the x86 dlls on my machine (in my project) to get replication to work? What are the files needed and how to reference them?
Thanks!