Frank If it has worked OK for 18 months it suggests that something has changed on your system. Have you tried: (a) reinstalling Windows. (b) reinstalling the Nuffield software from the CD-ROM? Best of luck! Steve Hurd ----- Original Message ----- From: frank.ruffoni To: [log in to unmask] Sent: Monday, February 04, 2002 8:46 PM Subject: Help My Nuffield Enquiries software has been running on my stand alone PC quite happily for the last 18 months and now it will not load. I am immediately confronted with this message "Error initializing Internet cache engine (winsock.dll: WSA Startup error #10091)" Everything else works fine. Cannot even run it directly from the CD. Any ideas for a solution. Thanks Frank