"limited virtual memory" error message on logon

I have this problem described in the artciles 812448 and
315270 of knowledge base. PLEASE does anyone knows what
is the procedure for XP in the case of 812448 (i followed
the parallel working windows installation and it didnt
work) and why in the case of 315270 although i have given
to system and everyone full access and control over
everything nothing changes ? ( special permisions is
alwasy grayed there )

PLEASE would apreciate any serious help. i have tried
everything for many months now since the problem appeared
(propably after a hard disk replacement) and due to
professional reasons i cant format/clean reinstall the
system here.