If you are using Microsoft IIS Web server, perform the following instead of Step 4 in the preceding instructions:
For IIS 4.0, click Start > Programs > Windows NT Option Pack > Microsoft Internet Information Server > Internet Service Manager. For IIS 5.0, click Start > Settings > Control Panel > Administrative Tools > Internet Services Manager. For IIS 5.1 click Start > Control Panel > Administrative Tools > Internet Services Manager. Under your localhost name, find Default Web Site. Click to highlight it. Click Action in the toolbar. From the dropdown menu, point to New and click Virtual Directory. Create a virtual directory for your output directory to <common output drive>:\output, for example, O:\output. Navigate to the output directory in Windows Explorer and select the Sharing tab from File > Properties. Select Permissions and add the account you will be using to log in to both the ArcIMS host machine, and the Spatial Server machine. Grant the account Full Access.
Note: IIS requires that users logged in as remote network users access the Web server from network access rights set in User Manager. This login method enables the user to access the server from a Web browser but doesn’t give the user the right to log in locally. Users logged in with this method cannot access remote authenticated resources such as SQL Server using integrated security.