I have lost some dll files on XP

Hi.....thinking I was being smart I downloaded a program that is suposed to clean up old dll files and archive them for you. When I did so I immediatly got a pop up saying that some dll files that are needed to run windows properly are missing. So I restored the dll files that were archived. They all restored but one. I tried everything and it wouldn't work *slamming head on desk*
I then found that what seems to be missing is the system restore. I can't get it to come up at all....blank, zilch nothing. When I click it....the hour glass pops up for like 2 secs. and then goes away. Then if I click "System Information" I get a pop uo that says "marscore dll. not found" and if I click "help and support" the same thing.
So after searching and trying to find ways to get these dll files back I found someone that says to run a "sfc /scannow" When I do that it says that some files are missing and that I need to restore them by putting in my Windows Service pack 1 cd. Well.....I don't have that. I only have the "reinstallation cd Microsoft Windows XP Home Edition". It came with my dell computer. I have no cd that says "Service Pack 1". I can download service pack 1 from MS but it did not help....I still get the pop up for the service pack cd to be out in the drive.
Any help will be very much appreciated.
~Serene

 

Have you tried just popping in the XP reinstallation CD to see if that works when it prompts you for a CD?

If that doesn't work, how about trying a Windows repair by booting from the Reinstallation CD?

 

Yes I did try to put in the xp install disk and that didn't work. I will try the boot up to fix it. Thanks for the ideas....I will try anything at this point.
~Serene

 

Try going to Start > Run and typing:

sfc /scannow

 

I did that and it ran the test but then said I was missing files and to insert the Windows Xp Service Pack 1 cd.....but I didn't get a windows xp service pack 1 cd when I bought the computer. I only have the reinstalling cd and if I put that in when it asks for the SP1 it says it is the wrong cd.

I will keep trying any suggestions though...I am getting desperate.
~Serene

 

What dll is missing?

 

I know that one is called the marscore dll. When I click the system information a pop up says "Marscore dll not found". I have found the marscore dll on another site and tried to install it....but it still says the same thing. I can't ever get my system restore to load up.

I booted up using the windows reistall cd and went to repair.....from there it asked me for a "authorization" password.....I am sorry but I am not sure what that is. I tried a couple of the passwords that I use but they were all wrong. Does anyone know where I can find this password/code?

aarrggg....I sure wish I was better at this repair stuff. I think it could help if I could get past that "auth. password" thing

 

If it's asking for the admin password, I've heard that this site has a program that's good for clearing/changing that password:
http://home.eunet.no/~pnordahl/ntpasswd/

You can also go to http://www.dll-files.com/ to download any replacement DLLs. Download and copy whatever is missing to C:\windows\system32

If it still doesn't work, you can try going to Start -> Run -> cmd
At the command prompt type "regsvr32 [DLL File name]" without the quotes, where the downloaded DLL replaces [DLL File name].