Can't install .NET Framework

[Breckon]

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I want to install .Net Framework but cannot install it pretty much. The kodak all in one 5300 printer/scanner that I have actually needs it. I have tried to install it from my XP disk but am getting an error message. I am getting confusing information when searching on the web. I have called kodak but they reffered me to go to Microsoft for a solution. If I am trying to open the Kodak Aio program then I am getting the below error message:
Please set registry Key HKLM\software\microsoft\.net framework\install root to point to .net framework install location.

I dont have Net framework installed on my pc and I cannot get it to install. I am running Windows XP SP2, can anyone please help me out? Thanks.

[Tomthegreat]

Can you try to delete the catroot2 folder and check if that solves the issue. Also see article on "You cannot install some updates or programs" from the below link:
http://support.microsoft.com/default...&Product=winxp

[Breckon]

Thanks for responding. I went to the link and followed the instructions and tried to install Net Framework and got the below error message:
NET Framework 1.1 setup.exe is not a valid Win32 application.

Do you have any other ideas? Thanks.

[unidentified]

It seems that 'not a valid win32' could be a malware or something. Can you try to scan your computer with some antivirus program.

[Breckon]

I have downloaded the NET Framework 1.1 from the microsoft download website. So I dont think that it could be a virus? Thanks

[Breckon]

So I think that I have found a solution for this issue. I have removed the Office 2000 SP2 and net installed with no issues. Now, I have to find a way to not receive the following message when I try to open some programs. I have tried to remove the Norton's Security from my computer, so it might be an imbedded plugin in office 2000.

[mauricio]

Check the article on "Error codes “0x80070643” or “0x643” occur when you install the .NET Framework updates" from this link - http://support.microsoft.com/kb/976982/en-us

[johnnyboy100]

i need to install it too for video editing programs and ive been trying so many times and it keeps saying theres a error. it says "failed to instal....because of system error:0x80131107"
can any1 help me please?