I noticed an EXE in SysInternals Process Explorer unfamiliar to me - MsSpellCheckingFacility.exe It is related to IE10, which I recently installed on my Windows 7 x64 system. Screenshots from ProcExp: From IE10 - select blue TOOLS button; "Internet Options" - For additional info on IE10 & Spellchecking in IE10 - ▪ Spellchecking in IE10 ▪ Spelling checker dictionary add-ons for Internet Explorer 10 Release Preview in Windows 7 SP1 are available IE10 is standard on Windows 8; available for Windows 7 - ▪ Download Internet Explorer 10 - Download Internet Explorer 10 ▪ Download IE10 Platform Preview