I lost my harddrive and had to reinstall QR4W (version 6.2b 971212).
It will run ok but when I try to create a new report I get the message

Configuration Error
Library PDIRDAO.DLL cannot be opened. Please check its configuration.

I also get the same message for files
PDCTDAO.DLL
PDQCOMMX.DLL

I then get the message
Error recognizing file
File C:\QRW\ACCPAC.SSI is not a know database type. Please check again.

Any help would be appreciated.