For more information about installation issues with the Microsoft .NET Framework 1.0, click the following article numbers to view the articles in the Microsoft Knowledge Base:
923100 When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0, or 3.5, you may receive Windows Update error code "0x643" or Windows Installer error code "1603"
939160 The file version is rolled back to the version that was installed by the last service pack when you remove some security updates for the .NET Framework 1.1 or for the .NET Framework 1.0
938244 The file version is rolled back to the version that was installed by the last service pack when you remove an update for the .NET Framework 1.0, the .NET Framework 1.1, Visual Studio .NET 2002 or Visual Studio .NET 2003
Update removal information
To remove this update, use the Add or Remove Programs item in Control Panel.
The English (United States) version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.