COM and Registry Access

Does anyone have a link describing the internals that are performed by the run time and OS when instantiating COM objects specifically in regards to the registry and possible methods to reduce that registry access. We have an app that extensively uses com and there are large performance differences between running on win2k pro and win2k server although boards, cpu's, memory etc are equivalent. Does anyone know if the server os serves the registry more efficiantly or loads in different memory etc. We think it may be the registry access causing the poorer performance on the work station as when reducing the reads to the registry by early binding objects etc there is more of a noticable improvement on the work station than on the server. Any suggestions would be greatly appreciated.
Thank you