Win 2003 Server, IIS 6, PHP 5 : Error: security error (ACL ERROR).

I am using Win 2003 Server, IIS 6, PHP 5.
If you see "You are not authorized to view this page" error when running your PHP page.
Try one more thing:
1. Right-click {C:\php} (or your PHP installation root) and select {Properties}
2. Select {Security} tab and click {Add} button
3. Enter {ComputerName/IUSR_ComputerName} as object name and press {OK}
4. Select {Read & Execute} as permissions
5. Click {Advanced} button and select {Allow inheritable permissions from the parent...} checkbox
6. Press {OK}