Hi all, A lot of DIAX users have reported problems trying to run DIAX on Windows XP with SP2 installed. It seems that this SP unregister and uninstall a system file (msstdfmt.dll). When you try to start DIAX, you get the following error: Run-time error '713': Class not registered. You need the following file to be installed on your machine. MSSTDFMT.DLL. To solve this issue, you must download the file from the original Windows XP CD, from the following location: http://www.dll-files.com/dllindex/pop.shtml?msstdfmt or from any place you trust it in the C:\Windows/System32 directory and register it using the following command from a command prompt console: regsvr32 c:\windows\system32\msstdfmt.dll This problem will be solved in the next DIAX release. Thank you all for your understanding and best regards, Dan P.S. If you still have problems, please send me a mail directly using the address from this e-mail or the one from the DIAX site: http://www.laser.com/dante