Recovering data from a corrupt embedded MySQL Server.

Dear All, I have inherited an embedded database from a customer, which seems apparently encrypted. You cannot read the data from the FRM and MYD & MYI files by copying them into the mysql directory since we get an ‘Incorrect Information from … table_name.frm’ file. I have worked on this fulltime since 3 days and I’m getting nowhere. Is there a possibility to extract data from the MYD file alone ? I know the FRM file is encrypted, and the former software can still read the data from the database. Any pointers will be highly welcomed.