It would seem that Norton AV is the source of navsetup.exe
explorer.exe is well explorer, and iexplorer (ver 7) is IE

It looks like Norton is the source of the problem.
There may be updates needed.

"matr" <matr@discussions.microsoft.com> wrote in message
news:B6129606-5D2A-4F59-8617-ADF9A2257647@microsoft.com...
> have xp media center edition 2005, started getting this error alot since
> updating to explorer 7. 3 total that give same error. 1-Faulting
> application navsetup.exe, version 14.2.0.29, faulting module unknown,
version
> 0.0.0.0, fault address 0x0178640e. 2-Faulting application explorer.exe,
> version 6.0.2900.2180, faulting module unknown, version 0.0.0.0, fault
> address 0x00d0640e. 3-Faulting application iexplore.exe, version
> 7.0.6000.16414, faulting module unknown, version 0.0.0.0, fault address
> 0x054e640e. thanks, Matr