The swdocumentmgr.dll has become unregistered. follow these steps and you should see a screen come up and say DllRegisterServer has succeeded. Open a Command Prompt Change the directory by typing - cd C:\Program Files Then type the following- regsvr32.exe mcamx7\common\sworksdata\swdocumentmgr.dll To open a command prompt click on Start-open all programs-accessories- scroll down to Command Prompt - right mouse click - run as administrator.