I was truly amazed when I read this Microsoft support document. If you install the Scalable Networking Pack on your Windows 2003 Small Business Server a whole bunch of stuff can just break.

If you work in technology support, just read the below list, basically a list of your worst nightmares all in one place.

From the article:-

After you install Microsoft Windows Server 2003 Service Pack 2 (SP2) or Microsoft Windows Server 2003 Scalable Networking Pack on a computer that is running Microsoft Windows Small Business Server 2003 (Windows SBS), you may experience many network-related symptoms.

These symptoms may include one or more of the following:

• When you try to connect to the server by using a VPN connection, you receive the following error message:Error 800: Unable to establish connection. 
• You cannot create a Remote Desktop Protocol (RDP) connection to the server. 
• You cannot connect to shares on the server from a computer on the local area network. 
• You cannot join a client computer to the domain. 
• You cannot connect to Microsoft Exchange Server from a computer that is running Microsoft Outlook. 
• You can only connect to Web sites that are hosted on the server or on the Internet by using a secure sockets layer (SSL) connection. In this scenario, you cannot connect to a Web site that does not use SSL encryption. 
• You experience slow network performance. 
• You cannot create an outgoing FTP connection from the server. 
• The DHCP Server service crashes. 
• Clients experience slow domain logons. 
• Network Address Translation (NAT) clients that are located behind Windows SBS 2003 experience intermittent connection failures. 
• You experience intermittent RPC communications failures. 
• Clients that are configured as SecureNat clients may be unable to connect to the Internet. 
• Some Outlook clients may be unable to connect to Exchange.  
• You cannot run the Configure E-mail and Internet Connection Wizard successfully. 
• Microsoft Internet Security and Acceleration (ISA) Server blocks RPC communications. 
• Clients cannot visit the http://companyweb Web site. 
• You cannot browse Internet Information Services (IIS) Virtual Directories. 

Link: http://support.microsoft.com/kb/936594

This entry was posted on Thursday, July 19th, 2007 at 8:02 am and is filed under Blog Entries, Security Advisories, Small Business, Tech Tips. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.