DOCUMENT:Q224831 31-DEC-1999 [iis] TITLE :Tips on Upgrading from IIS 3.0 to IIS 4.0 PRODUCT :Internet Information Server PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server 4.0 ------------------------------------------------------------------------------- SUMMARY ======= This article provides tips on upgrading a Web site from Internet Information Server (IIS) 3.0 to IIS 4.0 MORE INFORMATION ================ CAUTION: When you run the Windows NT 4.0 Option Pack (NTOP) Setup program, Do Not click the Cancel button once it has begun copying files. If you cancel it at this time, you will have to completely rebuild the Web server. If you are using PERL in any of your Web pages, refer to the following Microsoft Knowledge Base articles: Q190011 Perl Script Mappings Converted to Uppercase During Upgrade Q186801 PERL Scripts Do Not Run Note: A version of PERL that some IIS users use is provided by ActiveState. For more information, visit: http://www.activestate.com/ If you use the logging features of IIS, read: Q183733 Active Log Format Drop-down List Is Not Populated Although it's not a requirement, it is recommended that you Do Not modify the Default Web site. If possible, leave it as-is, and instead, create a new Web site or sites for your pages. Changing the default permissions and other properties of the Default Web site can cause upgrade complications. If the system administrator has restricted access or permissions to the Web server directories, you may have problems when upgrading. To verify that the NTFS permissions are set up properly, refer to the following Knowledge Base article: Q187506 List of NTFS Permissions Required for IIS Site to Work IIS 4.0 installation creates two user accounts: IUSR_ and IWAM_. These two accounts are required during the latter part of the NTOP installation, specifically by Index Server and the Sample Sites. If the domain controllers are not synchronized in time for that part of the installation, the accounts will not be available, and the installation will fail. To avoid this situation when you install on a BDC, choose a custom installation, and deselect Index Server and the Sample Sites. After the installation has completed and the domain controllers have been synchronized, run the NTOP Setup again, and selectively install Index Server and the Sample Sites. When you run the Windows NT 4.0 Option Pack Setup program, click the Upgrade Plus button to perform a custom installation. Leave everything checked that is already selected by default, and then select additional components that you want, such as additional samples and documentation. NOTE: This problem does not occur with the Windows 2000 Indexing Service. Related Topics -------------- For information on the benefits of upgrading from IIS 3.0 to IIS 4.0, see: http://www.microsoft.com/ntserver/web/exec/overview/option_pack4.asp For tuning tips on IIS 4.0, download the self-extracting document "Tuning Parameters for High-Volume Sites" from: http://www.microsoft.com/ntserver/zipdocs/tuning.exe Additional query words: tricks caveats gotchas problems advice advise guidance suggestions recommendations hints set up nt4op ntop install installation ====================================================================== Keywords : Technology : kbiisSearch kbiis400 Version : winnt:4.0 Issue type : kbhowto ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.