Before you can assign permissions to the archive, charting or database folders, you need to know which user account WDS is running under.
To find out the WDS user account:
1. Open IIS Manager, as follows: Start menu> Administrative Tools> Internet Information Services (IIS) Manager. Expand the name of the server.
2. Find out which application pool your web site is running under.
Expand Sites and locate the web site or virtual directory where WDS is installed. Right-click the virtual directory, point at Manage Application, and click Advanced Settings.
The Advanced Settings dialog box appears. Observe the name of the application pool in the first line.
3. Now that you know which application pool WDS is running under, you can find out the user account.
The account WDS is running under is in the form "IIS APPPOOL\". For example, if the application pool is "WdsSite1AppPool", the user account is "IIS APPPOOL\WdsSite1AppPool".