BRUSSELS, Sept 7 (Reuters) - Microsoft said on Wednesday it sued the European Commission in an EU court to gain quick resolution of a question surrounding sanctions imposed by the Commission on the company. The Commission has required Microsoft to share communications protocols -- or software rules of the road -- with rival makers of computer servers, ruling that it abused its dominance of the Windows operating system. Microsoft does not want to share that information with "open source" publishers who might make public what it says is confidential information. "This filing is the result of the agreement reached...