If you are using an Classic ASP, ASP.NET or PHP application on a Windows Server that requires that you write data or upload to a folder then you will need to check and if necessary change the permissions on the server so that you have write as well as read permissions on the directory and files you wish to write too.

To check or change the permissions on the server go to Windows Explorer and do the following (for NT and Win 2K users only using NTFS file system, Win XP Pro users see note at bottom):
1. Right click on the directory containing the database or text file.
2. Click on 'Properties'.
3. Choose the 'Security' tab form the dialog box window.
4. Uncheck 'Allow inheritable permissions from parent to propagate to this object', from the bottom of the dialog box.
5. Next, click on the 'Add' button at the top left of the window.

6. Next the 'Select Users or Groups' dialog box will open, highlight 'IUSR_MyComputer' account from the list by clicking on it. Where 'MyComputer' is this will be the name of your computer. 'IUSER' is the Internet Guest Account setup by default when IIS is installed on the system.

7. Next click on the 'Add' button in the middle left of the dialog box. You should then see 'MyComputer\IUSER_MyComputer' appear in the box in the bottom half of the dialog box. Again where 'MyComputer' is will be the name of your computer.
9. Now click on the 'OK' button at the bottom right of the 'Select Users or Groups' dialog box.
10. You should now be back at the 'Security Properties' dialog box where the top box should now contain the 'Internet Guest Account (MyComputer\IUSER_MyComputer)'.
11. Highlight the 'Internet Guest Account (MyComputer\IUSER_MyComputer)' by clicking on it in the top box.
12. Select 'Read' and 'Write' permissions for this account by checking the boxes at the bottom of the window (If you are not to worried about security you could check all the boxes to make sure that you have no problems with permissions).

13. Next repeat all the steps above on the database or text file itself, to make sure the database or text file also has the correct permissions.