New Rig. Windows 7. 32 Bit. Error 713 and the missing file MSSTDFMT.DLL Followed JD's initial instructions.................Unsuccessful.Found file in Windows/sysWOW folder. Downloaded new file from Ascentive. Returned to JD's initial instructions but for 64 Bit rig rather than 32.bit, and followed instructions given by 'tom55', right clicking on cmd at top of Search page and 'Run as Administrator. Success was at last achieved.As a newbie I have found that running as administrator right from applying for the Registration Key can avoid some problems.My thanks to JD, DerekJB and Tom55.