I have one of those old old copies around here somewhere... from what I remember of that nightmare, you had to navigate into the game folder, use the <Ctrl><A> key combination to select all of the files in the folder. Then right-click with the mouse and choose "Properties". On the "General" tab, toward the bottom is the "Attributes" section, and the "Read-only" probably has a lightly-colored check mark in it. Clear that check mark by clicking on it, and then clicking on either "Apply" or "OK", and then choosing to apply it to all files and sub-folders. Then try to run the patch by right-clicking on it, and selecting "Run as administrator".
