when switching off of a novell server to a windows server in 7 series, get the message in the upper corner that it cannot locate IPXSPX.
SOLUTION:
in the autoexec file you will see
lh %SystemRoot%system32nw16
lh %SystemRoot%system32vwipxspxset
add a REM statement to those fields so they appear
REM lh %SystemRoot%system32nw16
REM lh %SystemRoot%system32vwipxspxset