                             DELRINA CORPORATION

        895 Don Mills Road                6830 Via Del Oro
         500-2 Park Centre                    Suite 200
         Toronto, Ontario               San Jose, California
          Canada M3C 1W3                  U.S.A. 95119-1353

NORTH AMERICAN SUPPORT
Bulletin Board (BBS): (416) 441-2752     WinComm:            (416) 443-4395
Fax InfoLine:         (416) 443-1614     Forms Products:     (416) 441-3086
Fax:                  (416) 441-0774     Macintosh Products: (416) 441-2457
DosFax/WinFax/LITE:   (416) 441-0921     Network Products:   (416) 441-1928
WinFax PRO 4.0:       (416) 443-4390     Premium Support:    (800) 561-0820

U.K. SUPPORT
General Support:      44-81-207-3163     Fax:                44-81-207-5316

===========================================================================
                   T E C H N I C A L    N O T E S

                         Product: WinFax PRO 4.0
                    Document No.: 6008
                   Document Date: June 2, 1994
===========================================================================
Subject: File Extension Descriptions

The following table describes the type or purpose of all file extensions 
used for WinFax PRO 4.0 files. Descriptions of several specific files are 
also included.

File/
Extension      Location          Purpose/Description
---------------------------------------------------------------------------
.AAR          \WINFAX\DATA       Attachment archive list
.AWB          \WINFAX\DATA       Microsoft At Work binary file bundle
.AWM          \WINFAX\DATA       Microsoft At Work message information
                                  (incoming and outgoing)
.AWP          \WINFAX\DATA       Microsoft At Work public key
.AWR          \WINFAX\DATA       Microsoft At Work private key backup
.AWS          \WINFAX\DATA       Microsoft At Work digitally signed file
.BMP          \WINFAX\MACROS     Bitmap graphic file used as toolbar icon 
                                  for Lotus AmiPro macro
.CVP          \WINFAX\COVER      WinFax cover page
.CVR          \WINFAX\DATA       Filled cover page text
.DAT          various            Configuration files
.DB           \WINFAX\DATA       Database of folder contents for logs, 
                                  phonebooks, cover pages and attachments
.DBF          \WINFAX\DATA       Phonebook database, in dBASE
.DCX          various            CAS multi-page images
.DLL          \WINFAX            Dynamic Link Library files, program 
                                  modules loaded as required
.DOC          \WINFAX\MACROS     Microsoft Word macros
.DRV          \WINDOWS\SYSTEM    Driver file
.EXE          \WINFAX            Executable program files
.FTM          \WINFAX\DATA       List of events in a folder
.FXD          \WINFAX\DATA       Sent fax
.FXM          \WINFAX\DATA       Multiple-page fax, for forwarding through
                                  mail
.FXR          \WINFAX\DATA       Received fax
.FXS          \WINFAX\DATA       Fax attachment
.HLP          \WINFAX            Help file
.IND          \WINFAX\DATA       Index file for attachments on sent faxes
.INF          \WINFAX\DATA       Phonebook record management file
.INI          \WINDOWS           Initialization files
.LC           \WINFAX            OCR language pack
.LOG          \WINDOWS           Log file
.LST          various            List file
.LSZ          various            Compressed cover page files
.MD           \WINFAX            Spelling dictionary
.MSG          \WINFAX\DATA       Mail message sent or received in WinFax
.NDX          \WINFAX\DATA       Phonebook database index,, in dBASE
.PB           various            CAS phonebook
.PCX          various            CAS fax images
.SAM          \WINFAX\MACROS     Lotus Ami Pro document
.SMM          \WINFAX\MACROS     Lotus Ami Pro macro
.STY          \WINFAX\MACROS     Lotus Ami Pro stylesheet
.TIF          \WINFAX\COVER      TIFF graphic file used on cover page
.WAV          various            Windows wave file (sound)
.WMF          \WINFAX\COVER      Windows Metafile graphic used on cover page
.WPT          \WINFAX\MACROS     WordPerfect macro
.XLM          \WINFAX\MACROS     Microsoft Excel 4.0 macro
.XLS          \WINFAX\MACROS     Microsoft Excel 5.0 macro
DEFAULT.DBF   \WINFAX\DATA       Default phonebook database,, in dBASE
DEFAULTG.DBF  \WINFAX\DATA       Database of groups and group members in 
                                  default phonebook
DELTEST.LOG   \WINDOWS           Delrina TEST log file
EFAXPUMP.INI  \WINDOWS           Microsoft at Work initialization file, 
                                  containing login preferences
KEYFILE.DAT   \WINDOWS           Microsoft at Work public key file
MODEMS.DAT    \WINFAX            List of supported fax/modems and 
                                  initialization strings
STATUS.FTM    \WINFAX\DATA       List of events in Outbox, Send Log and 
                                  Receive Log folders
USER.UD       \WINFAX\DATA       User dictionary for OCR
WINFAX.DRV    \WINDOWS\SYSTEM    WinFax print driver
WINFAX.INI    \WINDOWS           WinFax initialization file, containing 
                                  working preferences
WINFAX4.LOG   \WINDOWS           Installation log file
