Can anybody help me...

When i try to open my database i get the errormessage "C:\vfpapps\kalib\kalib.dct is not an object file ".
The problem started when i clicked on the "Build Exe" button i the projectmanager , when i at the same time
had an reportfile minimized. VFP asked if i wanted to save the reportfile , i clicked "YES" and VFP stopped working (had to use Ctrl-Alt-Del to shut down VFP).

Is there any way to repair this file ?. I do have a backupfile , but it is to old.