I have an FTP site that was created under Windows Server 2003 IIS 6.0. I created a generic user for login puposes. I work for a construction company and we have about 70 subcontractors trying to log in at the same time with the same user name. A few have reported that they are experiencing issues logging in. How many concurrent logins can one user be allowed for an FTP site or for Windows Server 2003?