MSDN Library requires that Windows Server 2003 Service Pack 1 be installed on your computer before you install MSDN Library. You can download and install this service pack from http://windowsupdate.microsoft.com/. After you install this service pack, you are required to restart your computer. MSDN Library setup will not automatically restart. To restart MSDN Library setup, double-click setup.exe on the CD, DVD, or network share you installed from or click the appropriate link on the download Web site.
Note: It is highly recommended that you regularly check for and install updates for your operating system. To search for operating system updates, see http://windowsupdate.microsoft.com/.
Service packs are the means by which product updates are distributed. Service packs can contain updates to improve system reliability, program compatibility, security, and more. For more information on Microsoft Service Packs, see http://support.microsoft.com/default.aspx?scid=fh;EN-US;sp.