I'm afraid you'll have to restore it from backup. If don't have one you can try to salvage some code by openning .sct file with a text editor.

>I was building a new exe from a project when the existing exe with the same
>name accidently ran. I now receive the following error memo file is missing or invalid. this refers to my .sct file. When I open my .scx as a table and
>view the records everything passed the 12 record is missing or corrupted.
>
>any ideas on how to recover the form?