FTP: Setting Up Windows NT 4.0, 2000, or XP Workstations to Accept FTP Transfers

FTP: Setting Up Windows NT 4.0, 2000, or XP Workstations to Accept FTP Transfers: "Configuring the FTP Server
On the desktop, double-click My Computer, then double-click the hard drive on which you have Windows installed.
Open the folder inetpub. Right-click the ftproot folder and select Properties.
Click the Sharing tab. Select the radio button Share this folder, then click Permissions. From the list that appears, select Everyone, and then click Remove.
Click the Add... button. In the drop-down list, select your computer's name. In the list of user groups that appears in the center scroll box, select Users, then click Add, followed by OK. In the Permissions window, set the access level. If a user only needs to download files from your computer, set the access to Read. To give upload permission, also check Change. Click OK.
Create User accounts for each of the individuals who will need to access your server. You can do so by opening the Control Panel, then double-clicking the Users and Passwords icon. For each user, you will need to provide a username and domain.
In the main Control Panel window, double-click Administrative Tools, then double-click the Computer Management icon. A new window will open. On the left, beside Services and Applications, click the + (plus sign), and then click the + (plus sign) beside Internet Information Services.
Right-click Default FTP server and select Properties. Under 'Services', make sure that Allow anonymous connections is not checked. This will prevent unauthorized access to your workstation. Click OK, then close all windows."