Skip to main content

.NET Framework 1.0 Service Pack 1

Service Pack 1 (SP1) is still available to download for testing purposes. .NET Framework 1.0 Service Pack 2 contains all SP1 fixes plus the latest updates. Please use SP1 at your own discretion.

Download Now
Microsoft .NET Framework 1.0 SP1 is available in nine localized languages.
Frequently Asked Questions
Find answers to frequently asked questions about Microsoft .NET Framework 1.0 SP1.

Summary of Fixes
Read a summary of the issues that Microsoft .NET Framework SP1 addresses.