Think I see the issue. IIS not installed. But I just checked my services and IIS Admin Service is running. And I can go to the IIS Manager. I am not real familiar with it. Shows Red X on FTP sites, SMTP, NNTP.
11/17/2009 11:50:31 AM - ------------ Lansweeper Setup Started ------------
11/17/2009 11:50:31 AM - OS: Microsoft Windows Server 2003 Service Pack 2 (Build 3790)
11/17/2009 11:50:31 AM - Inst: 3.5.11
11/17/2009 11:51:26 AM - Checking connection to MAIN1\SQLEXPRESS ...
11/17/2009 11:51:26 AM - Connection to MAIN1\SQLEXPRESS ... succeeded!
11/17/2009 11:51:28 AM - Checking if Lansweeper Database exists ...
11/17/2009 11:51:29 AM - Checking if Lansweeper Database exists ... succeeded!
11/17/2009 11:51:42 AM - ------------ Running Preinstall tasks ------------
11/17/2009 11:51:42 AM - ------------ Installing Lansweeper Files ------------
11/17/2009 11:51:42 AM - Operating System: Microsoft Windows Server 2003 Service Pack 2 (Build 3790)
11/17/2009 11:51:42 AM - Database Server: SQL Server 2005 Express Edition SP3 ver. 9.00.4053.00
11/17/2009 11:52:06 AM - ------------ Running Postinstall tasks ------------
11/17/2009 11:52:06 AM - ------------ Configuring Lansweeper WebConsole ------------
11/17/2009 11:52:06 AM - Configuring Internet Information Services ...
11/17/2009 11:52:50 AM - Microsoft IIS is not installed. Error: :
11/17/2009 11:52:50 AM - Checking the root site ...
11/17/2009 11:52:50 AM - Cannot connect to root site
11/17/2009 11:52:50 AM - Removing old Lansweeper website if exists ...
11/17/2009 11:52:50 AM - Creating Lansweeper website as root site ...
11/17/2009 11:53:01 AM - INSTALL ERRORS: Cannot connect to root site
11/17/2009 11:53:03 AM - ------------ Lansweeper Setup Finished ------------