>After command SET LIBRARY TO AddProp5.dll
>I got a message "addprop5.dll is not a Visual FoxPro .EXE file"
>I know that AddProp5.dll is O'k. Something is wrong with FoxPro RumTime configuration.
>
>... how resolve this problem?
>Help me please.

ADDPROP5.FLL requires the MSVCRT.DLL file be present in your WINDOWS\SYSTEM folder. I think you'll find it missing on the machine that doesn't work.