DLL question

This question is sort of openGL related, but its has more to do with DLLs in general. Something is confusing me. I have something like this: -renderer in a DLL that uses the openGL DLL -gui in a DLL that uses the openGL DLL -particle system in a DLL that uses the openGL DLL -plus my main program uses the OpenGL DLL also I know each DLL has its own heap, but will they share texture ids which are stored in the openGL DLL (I think)? I''m curious if I call glBindTexture(id) in say my particle system DLL or in my main app for a texture initially bound in my renderer DLL will it will recoginize the id? Or do I need to bind the texture that was created in the renderer DLL always in the renderer DLL?