>The getlasterror = 120
>120 This function is not supported on this system. ERROR_CALL_NOT_IMPLEMENTED

This is because LogonUser is not implemented on Win9x. You can use it only on WinNT.

>I did not understand the ASCI and UNICODE stuff from (Paul Vlad Tatavu)
>I changed the declaration in AS LogonUsera and AS LogonUserw but no result
>Checked on win98 machine accessing an NT domain and server

VFP will choose automatically between the version ended in A and the function ended in W.

Vlad