After I installed service pack 6 and a few other upgrades
on NT 4.o Server from MS Website I can no longer log on.

After entering my password I get a DR Watson error log as
follows:
explorer.exe access violation 0xC0000005 at Address

MS Knowledgebase article 170907 sudgests that
explorer.exe has been replaced by Win 95 version of
explorer.  Even after replacing explorer.exe with Win NT
version of explorer.exe from a running Win NT 4.0 server
I get the same error.

Any ideas.

Thank you,

AK