An error occurred while registering the file?

Hi guys.
I was wondering if someone could tell me what to do.

I use VB6.0 SP3, Access97 and ADO to interact with my DB, Crystal Reports 8.0 Developer Edition for reporting.

When I install my system on, I think a machine that was loaded with win95 and was UPGRADED to win98SE, Then I get the following errors:

1. "An error occurred while registering the file 'C:\windows\system\msado21.tlb' "

2. "An error occurred while registering the file 'C:\Program Files\Common Files\System\ADO\msador15.dll' "

3. "An error occurred while registering the file 'C:\windows\system\cdo32.dll' "

Can someone please tell me what type of file this *.tlb is and for what it is used in systems or just how I can fix my problem and also what "cdo32.dll" is used for in a system.

Now maybe most of you will say that I must upgrade to the latest SP for VB6, but I am scared that it will create other bugs in my system, for I heard that some programmers say it creates other bugs if you sometimes upgrade your SP.

Thanks in advance ;)

Registration errors normally occur on systems when you need to be logged in as an admin to amke changes to registry settings.

.tlb files are type library files.

I think cdo32.dll is for Collaboration Data Objects.