C# DLL

I am using too many dlls in my app but the problem is that the dlls must be in the same folder of the application in order for it to work

but having a program exe with more than 15 DLL file is too ugly


so how can i embed those dlls in the EXE but still can use their functions
like i do in normal using NAMESPACE;

[Only registered and activated users can see links. Click Here To Register...]

But it gives me an error merging the dlls ...

ERROR : LMERGE Could not load assembly from ..The location of file.. skipping the processing

But it gives me an error merging the dlls ...

ERROR : LMERGE Could not load assembly from ..The location of file.. skipping the processing
and ERROR: UNresolved assembly not allowed

You can only merge managed assemblies & applications.

anyway to merge unmanaged dlls ?