Currently, the following problems are known to the developers of F-PROT:

#1 Problem running F-PROT on some old IBM ThinkPad models. 

   Some users of old IBM ThinkPad machines have experienced a total failure of
   F-PROT (DOS version) to run on their machines.  The reason is the following:
   We use the CauseWay DOS extender program to create the DOS version.  The
   ThinkPad models in question run some programs from SystemSoft, including one
   named CARDXTND.SYS, which uses an old 16-bit DOS extender from Rational,
   which is simply not compatible with applications made with other DOS
   extenders.  In effect, while CARDXTND.SYS is running, no CauseWay
   application (or for that matter, application using other extenders) can be
   run, not even a simple "Hello World" program.

   This problem also exists with older Zenith Data Systems notebooks that
   also use SystemSoft BIOS and drivers. The executable PMEXT.SYS must be
   in CONFIG.SYS for power management to function properly.

   There is nothing we can do to fix the problem, and we consider it
   entirely the fault of SystemSoft - however, as the machines affected
   by this problem are mostly obsolete now, the problem is not considered
   serious.

   Unless Systemsoft fixes the problem (which we do not expect), CARDXTND.SYS
   must be disabled in order to run F-PROT on those machines.

#2 Problem running F-PROT from a login script.

   We have received a single report of a problem that happens when F-PROT
   is run from a login script, where the program may randomly "hang" some
   time later.  We have not yet been able to duplicate this problem, but
   we suspect it is due to a conflict with some device drivers or other
   low-level software.

 #3 Running the DOS scanner on a NT/Win2000 machine with the F-PROT VDD

   Currently, the DOS version is unable to disable the VDD (on-access) version
   of F-PROT, meaning that when the DOS version scans a file, the VDD does it
   too.  This slows down the scanning and can be irritating.

   However, all users of the VDD should have the Windows version of F-PROT
   too, and we simply recommend that they use that instead of the DOS version
   if they have the VDD installed.
