Change folder icon

Hi,
I wrote a batch script to set a custom icon to folders:

ECHO [.ShellClassInfo]>%1\desktop.in_
ECHO IconResource=C:\Windows\system32\imageres.dll,22>>%1\desktop.in_
move %1\desktop.in_ %1\desktop.ini
attrib +S +H %1\desktop.ini


The desktop.ini it produces is identical to the one when doing the process manualy:

[.ShellClassInfo]
IconResource=C:\Windows\system32\imageres.dll,22

But it doesn't work. It only works if I set the folder icon manually.
Anyone?

Found the solution:

the folder must be ReadOnly:

ECHO [.ShellClassInfo]>%1\desktop.in_
ECHO IconResource=C:\Windows\system32\imageres.dll,22>>%1\desktop.in_
move %1\desktop.in_ %1\desktop.ini
attrib +S +H %1\desktop.ini
attrib +R %1