Page 1 of Missing files

When i run Norton WinDoctor i get an error message saying Missing file C:program filescommoninstallshielduntime80intel32dotnet.exe"cannot access file nscoreedl. windoctor cannot repair this. I am also having problems recording a dvd and also removing a program with add and remove programs. I dont know if these problems are related but they all occured at the same time. Can anyone please help?