mswapi.dll is a Trojan.Iespy-A. mswapi.dll monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\mswapi.dll More info: http://www.sophos.com/virusinfo/analyses... Removal: Remove mswapi.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.