Cant Uninstall Civ 4! HELP!

[Pentaki]

My Problem is every time I try to uninstall Civ 4 from my computer a window pops up sying there as an error and the uninstallation was aborted. In the details it says:


Error Code: -5006 : 0x8000ffff
Error Information:
>Kernel\TextSubstitution.cpp (550)
>SetupDLL\SetupDLL.cpp (1194)
PAPP:Sid Meier's Civilization 4
PVENDOR:Firaxis Games (##IDS_PRODUCT_URL##)
PGUID:CFBCE791-2D53-4FCE-B3FB-D6E01F4112E8
$11.0.0.28844
@Windows XP (7600) BT_OTHER 15092.30555

When I try playing civ 4 it says the program stopped working. I want to be ablet re install so cant manally delete. Please help! PLEASE!