I need help with a trojan RDLL Backdoor?

Question

I have a trojan in my registry, It is called RDLL BACKDOOR TROJAN when I scan with the Bazooka scanner it finds it and gives me a link to remove it manually,, But the problem is when I try to do a regedit on my system to remove it, I can not get into registry,, I have always been able to get in the registry before,, Can anyone help me figure this out?? Also I have scanned with Norton, Avast, xsoft SE, superspyware remover, Bazooka, Avg Free, Avg antispy, and various other scanner for these things and the only one who catches this is the Bazooka scanner,,
I need to get into my Registry to manually remove it But I can not get into the registry thru the RUN REGEDIT, as I mentioned I have always been able to get into my registry but now it wont open,, any help would be greatfully appreciated,, thanks much,

I want to thank all of you for your help,, I ended up doing a full recovery,,

Answer 1

Try this one...

http://www.windowsecurity.com/trojanscan/

Answer 2

try rebooting in safe mode ( push F8 before windows starts to get the startup menu) then boot in safe mode and try it

Answer 3

Read this link, if you do it in the right order you should be able to get into the registry:

http://www.spywareremove.com/removeRDLLBackdoor.html

UPDATE:

TRY THIS TOOL FIRST:

http://www.bleepingcomputer.com/forums/topic80749.html

Answer 4

disable system restore, restart your system in safe mode & and run regedit!

have you tried this?
http://www.activevirusshield.com/antivirus/freeav/index.adp?

hope that helps!

:-)