I have problems with a computer with win98, when I turn on the computer it
seems that it is logging properly but after I enter my user and password an
explorer error appear telling me that:

This program has performed an illegal operation and will be shut down.

Explorer caused an invalid page fault in module explorer.exe at 0167:00401f31.

I already tried to start in safe mode but I also have the same error and I
can not do anything else.

Could you please help me?