OK,
Tried this on a XP box and can't seem to get things to look right.
I googled for a while and came up with the following..
I tested this for a while and it seems to be right...
They didn't make them read-only. When you open the Properties for a folder,
the "Read-only" checkbox has a shaded square in it. This is not the same as
a check mark. The read-only checkbox is in what's called the "indeterminate"
state--it's a tri-state checkbox, and can either be checked, unchecked, or
"neither checked nor unchecked."
The read-only flag on a folder is meaningless in XP, anyway. Even if you set
a folder to read-only with the ATTRIB command, you can still put files in
it. The "read-only" flag on folders is used instead to mark them as
"special" folders.
A closer read of
http://support.microsoft.com/?kbid=326549Indicates
CAUSE
Unlike the Read-only attribute for a file,
the Read-only attribute for a folder is typically ignored by Windows, Windows components and accessories, and other programs. For example, you can delete, rename, and change a folder with the Read-only attribute by using Windows Explorer. The Read-only and System attributes is only used by Windows Explorer to determine whether the folder is a special folder, such as a system folder that has its view customized by Windows (for example, My Documents, Favorites, Fonts, Downloaded Program Files), or a folder that you customized by using the Customize tab of the folder's Properties dialog box. As a result, Windows Explorer does not allow you to view or change the Read-only or System attributes of folders.
So if you can write to the folder then don't worry about it.