MISSING: Microsoft Windows Common Controls-2 6.0

I have windows XP and Excel 2003. In Visual Basic Editor, References, I have missing the Microsoft Windows Common Controls-2 6.0. How can I enable it?
When opening the file, excel prompts Error compiling some modules. Opening the file in another pc with this common controls enabled, it works fine.

Thanks a lot fot the help.

Thanks Roy. I try it, but still Missing.
What else could I do?
It is prompting "Compile Error in Hidden Module".

I unprotect the file, and opened the Visual Basic Editor to see exactly where the problem was. I ran random modules and it points errors where there are variables.
For example, if I use: "For each C in range("B4:B100")", it marks the "C" and prompts the error message: "Cant find Project Library".
The same occurs where I use variables. For example, I create a variable called "COUNTR". I use that variable to count how many times a loop has been run (before the loop ends, I added the line "COUNTR=COUNTR +1").
Now, when running the macro, it prompts the "Cant find Project Library" error and marks the "COUNTR" variable.
In those cases I did not use Set, nor DIM to for the variables ("COUNTR"; "C"; etc).

good thank you