                           LAMBDIN'S ACCURACY TESTS

         BBS  SysOps  may  feel  free  to delete the older versions of
         LAT-????.ZIP  when  they receive the new file because I will
         be appending the old LAT reports below the current report.

         If you or your company produces  a  virus  scanner,  send  an
         evaluation  copy  to  me  on  5.25 " diskettes to the address
         below,  and  I  will put the utility through it's paces. then
         post the report in  this  format  that  will  be  distributed
         through BBSs, and Virus conferences.

         W.H. Lambdin
         P.O. Box 118
         East Bernstadt, Ky. 40729

         I contacted Fifth Generation  about  an  evaluation  copy  of
         Untouchable  to  test in  LAT.  I  was told they would have a
         supervisor call me and arrange the evaluation copy.  However;
         the supervisor never returned my call.

         I did not test CPAV 1.1 or Virus Cure 2.24 in the May version
         of  LAT because newer versions have been released, and I have
         not been able to get them yet.

         I feel that it is time for us to stand together in defense of
         Share  Ware  and  BBS  usage. Several companies refuse to use
         Share ware products because of the perceived virus threat.  I
         would  like  to  point out that several companies have helped
         the spread of viruses recently.

         Novel
         DaVinci
         Leading Edge
         and several others

         I want to thank  Fridrik  Skulason  and  Frisk  Software  for
         sending an evaluation vopy of F-PROT 2.03A for these tests.

--------------------------------------------------------------------------------

                                        May 1992

                                        ЩЭЭЭЭЭЭЭЭЭЫЭЭЭЭЭЭЭЭЛ
                                        К  Total  К Ratio  К
                                        К viruses К   %    К
                                        К         К        К
                                        К  340    К        К
                                        ЬЭЭЭЭЭЭЭЭЭЮЭЭЭЭЭЭЭЭЙ
Scan 89B (McAfee Associates)            К  340    К 100%   К
Win Scan 89B (McAfee Associates)        К  340    К 100%   К
VIRx 2.2 (Microcomm)                    К  334    К 98.2%  К
                                        К         К        К
F-Prot 2.03A (Frisk Software)           К  331    К 97.3%  К
PC-Scan (Trend Micro Devices)           К  319    К 93.8%  К
Virscan 2.15 (IBM)                      К  294    К 86.5%  К
                                        К         К        К
Virucide 2.37 (Parson's Technology)     К  265    К 77.9%  К
                                        ШЭЭЭЭЭЭЭЭЭЪЭЭЭЭЭЭЭЭМ

--------------------------------------------------------------------------------

                                        April 1992

                                        ЩЭЭЭЭЭЭЭЭЭЫЭЭЭЭЭЭЭЭЛ
                                        К  Total  К Ratio  К
                                        К viruses К   %    К
                                        К         К        К
                                        К  157    К        К
                                        ЬЭЭЭЭЭЭЭЭЭЮЭЭЭЭЭЭЭЭЙ
Scan 86B (McAfee Associates)            К  157    К  100   К
Wscan86b (McAfee)                       К  157    К  100   К
F-PROT 2.02 (Frisk Software)            К  154    К  98.1  К
                                        К         К        К
VIRx2.0 (Microcom)                      К  153    К  97.5  К
PC-Scan (Trend Micro Devices)           К  149    К  94.9  К
CPAV 1.1 (Central Point Software)       К  147    К  93.6  К
                                        К         К        К
Virucide 2.37 (Parson's Technology)     К  145    К  92.4  К
PC-RX 1.02 (Trend Micro Devices)        К  143    К  91.1  К
Virscan 2.15 (IBM)                      К  140    К  89.2  К
                                        К         К        К
Virus Cure 2.24 (I.M.S.I.)              К  128    К  81.5  К
                                        ШЭЭЭЭЭЭЭЭЭЪЭЭЭЭЭЭЭЭМ

--------------------------------------------------------------------------------

                                        March 1992

                                        ЩЭЭЭЭЭЭЭЭЭЫЭЭЭЭЭЭЭЭЛ
                                        К  Total  К Ratio  К
                                        К viruses К   %    К
                                        К         К        К
                                        К  102    К        К
                                        ЬЭЭЭЭЭЭЭЭЭЮЭЭЭЭЭЭЭЭЙ
Scan 85 (McAfee Associates)             К  102    К  100   К
Virucide 2.37 (Parson's Technology)     К   97    К  95.1  К
PC-Scan (Trend Micro Devices)           К   94    К  92.2  К
                                        К         К        К
CPAV 1.1 (Central Point Software)       К   93    К  91.2  К
PCRX 1.02 (Trend Micro Devices)         К   91    К  89.2  К
PC-cillin 3.12 (Trend Micro Devices)    К   91    К  89.2  К
                                        К         К        К
Virus Cure 2.42 (I.M.S.I.)              К   84    К  82.4  К
                                        ШЭЭЭЭЭЭЭЭЭЪЭЭЭЭЭЭЭЭМ

--------------------------------------------------------------------------------