INTRODUCTION
This article describes the two types of .NET Framework 1.1 packages and the type of package that you should use to install or update your computer. The following two variants of .NET Framework 1.1 packages exist:
- Optional Component Manager (OCM) installation and update packages
- Microsoft Windows Installer (MSI) installation and update packages
OCM installation packages are installed automatically when the operating system is installed. MSI installation packages are installed separately. Typically, MSI installation packages are installed by downloading the MSI package from the Microsoft Update Web site.
You cannot install a .NET Framework 1.1 MSI package on a computer that has the OCM version of the .NET Framework 1.1 installed. The reverse is also true. You cannot install an OCM package on a computer that has the MSI version of the .NET Framework 1.1 installed. Therefore, when you install or update the .NET Framework 1.1, you must make sure that you download and install the correct package type.
Typically, .NET Framework 1.1 OCM update packages include the operating system name in the update name. For example, "Update for Windows Server 2003" is an OCM update package for Microsoft Windows Server 2003 (32-bit). However, .NET Framework 1.1 MSI update packages typically include the .NET Framework version number in the update name. For example, "Update for .NET Framework 1.1" is an MSI update package that applies to several operating systems.
You can use the .NET Framework 1.1 language packs with the OCM and MSI installation packages. You can also use the .NET Framework 1.1 Software Development Kit (SDK) with the OCM and MSI installation packages.
REFERENCES
General information about the .NET Framework
For more information about the benefits of the .NET Framework, click the following article number to view the article in the Microsoft Knowledge Base:
829019
Benefits of the Microsoft .NET Framework
For frequently asked questions about the Microsoft .NET Framework, visit the following Microsoft Developer Network (MSDN) Web site:
For general information about the Microsoft .NET Framework, visit the following MSDN Web site:
Installation information about the .NET Framework
For more information about the differences between OCM and MSI packages for the .NET Framework, visit the following Microsoft Web site:
For more information about how to troubleshoot .NET Framework 1.1 installation issues on Microsoft Windows Server 2003, click the following article number to view the article in the Microsoft Knowledge Base:
830646
How to troubleshoot Microsoft .NET Framework 1.1 installation issues on Microsoft Windows Server 2003
For more information about how to troubleshoot .NET Framework 1.1 installation issues on other operating systems, click the following article number to view the article in the Microsoft Knowledge Base:
824643
How to troubleshoot Microsoft .NET Framework 1.1 installation issues
Information about 64-bit and Itanium-based computers and the .NET Framework
For more information about the .NET Framework and 64-bit computers, click the following article number to view the article in the Microsoft Knowledge Base:
907750
Versions of the .NET Framework, Visual Studio, and Visual Studio .NET that are supported on 64-bit computers
For more information about performance and scalability for Itanium-based computers on the .NET Framework, visit the following Microsoft Web site:
For more information about an IIS compatibility issue with ASP.NET 1.1 on 64-bit computers, click the following article numbers to view the articles in the Microsoft Knowledge Base:
895967
How to configure the process identity for the ASPNET account in ASP.NET 1.1 when you use IIS 5 Isolation mode in IIS 6.0 on Windows Server 2003
895976 Windows Server 2003 S895976 enables WOW64 compatibility for 32-bit Web applications in IIS 6.0
894435 How to switch between the 32-bit versions of ASP.NET 1.1 and the 64-bit version of ASP.NET 2.0 on a 64-bit version of Windows
895963 How to suppress the Appshelp message when you install the .NET Framework 1.1 redistributable file on 64-bit versions of Windows