The PCFlankLeaktest does not work with Windows 98 Kernal32.dll. Error message: The PCFLANKTEST.EXE file is linked to missing export KERNEL32.DLL: Process32FirstW. And a second error message . . . PCFlanktest.exe A device attached to the system is not functioning. Both messages come up together. Now the grc leaktest works. And does not succed. Leaktest fails, that is the firewall passes. The firewall is KerioPersonalFirewall 2.1.5 an early successor to Tiny Personal.