Topic Last Modified: 2006-06-06

Microsoft® Exchange Server 2007 setup cannot continue because setup is unable to access the default Web site on this server.

Exchange 2007 setup requires that the installation of the Client Access role access the default Web site created by Microsoft Internet Information Services (IIS).

The Client Access server role provides client access functionality, such as Microsoft Office Outlook® (when it connects over HTTP), Outlook Web Access, Exchange ActiveSync®, and clients that use the POP3 or IMAP4 protocols.

IIS acts as the protocol engine for the HTTP, POP3, IMAP4, Simple Mail Transfer Protocol (SMTP), and Network News Transfer Protocol (NNTP) protocols.

Situations may occur in which the IIS default Web site no longer exists. It may have been deleted or renamed to something other than Default Web Site.

To resolve this issue, first remove, and then reinstall IIS on this server. Then rerun Exchange 2007 setup.

Important:
You must uninstall and then reinstall IIS to resolve this issue. It is insufficient to re-create or rename the directory.
To uninstall IIS using Add or Remove a Windows Component in Control Panel

  1. On the Start menu, click Control Panel.

  2. Double-click Add or Remove Programs.

  3. Click Add/Remove Windows Components.

  4. In the Components list click the Application Server check box.

  5. Click Details.

  6. Click Internet Information Services Manager.

  7. Click Next.

  8. Click Finish when un-installation of IIS is finished.

To install IIS using Control Panel

  1. On the Start menu, click Control Panel.

  2. Double-click Add or Remove Programs.

  3. Click Add/Remove Windows Components.

  4. In the Components list click the Application Server check box.

  5. Click Details.

  6. Click the Internet Information Services Manager check box.

  7. Click OK until you are returned to the Windows Component Wizard.

  8. Click Next and complete the Windows Component Wizard.