Referring back to my original post, i now find the gedcom backup I put on a memory stick is empty!!
Looking in Computer>Vista ©>program files, I can see The Master Genealogist (1.26MB) created 15/10/2008, The Master Genealogist (199MB) created 09/04/2009 and TMG Utility (4.89MB) created 30/12/2008.
The first has one folder called BACKUP containing for folders, twowith extension .ocx and two with extension .dll ( one of which is the missing one from my original question).
The TMG Utility has three folders and 130 files
The second The Master Genealogist has 15 file folders, 4 applications, 4 application extensions and 55 other files called CDX, CNT, DBF, DIS, FPT, FPW, HTML, UPD, WCM, XLS, Paintbrush and TextDocs.
Is there any way to retrieve my data from these files before I move the original missing .dll file?