Error Starting Program

hello, i recently down loaded need for speed underground for my pc... however i only down loaded cd1 and tried to install the game for cd2 >.< when i pressed cancel on the insallation of cd1 ( after realizeing i needed both ) i started receving this error message when ever i try to play any game and also music wont play anymore.

Error Starting Program

The dsound.dlll file is
Linked to messing export NTDLL.DLL:NtQueryInformationProcess.
well i looked in c:\windows\system and both dsound.dll and ntdll.dll are there

if you have any clue on how to fix this problem please tell me.
Thanks, Socco

 

Well try getting the second cd somehow since well i believe the proggy needs to link the cd2 files with cd1 they interleave if you know what i mean.

 

why don't u just spend $20 and go buy it?