{1}Document Service{2} is the server service which allows to perform the document viewing and editing.{0}{1}Command Service{2} is the server service used to notify about the events when the document editing is being done.{0}{1}Storage Service{2} is the server service which is used to get the external link to the opened document.{0}{1}Conversion Service{2} is the server service which allows to convert the document file into the appropriate OfficeOpen XML format.