Added exception when user tries to use Access on a non-Windows system.
Added exception when user tries to use Access on a non-Windows system.

henrykironde/deletedret,goelakash/retriever,embaldridge/retriever,bendmorris/retriever,davharris/retriever,bendmorris/retriever,embaldridge/retriever,goelakash/retriever,davharris/retriever,davharris/retriever,bendmorris/retriever,embaldridge/retriever,henrykironde/deletedret