can't get into add remove programs

every time i go to get into add/remove programs it comes
up with a internet explorer error box saying
res://appwiz.cpl/default.hta do i want to continue running
scripts. if i click yes or no the same box will come up
again and then a new box comes up saying an unexpected
error occurred then res://appwiz.cpl/default.hta isn't
supported. how can i fix this problem. please email me
back to let me know how i can fix it. i have scanned it
with norton and other anti virus programs as well.

thank you for your help

garry