Less than a month after shipping its crucial Microsoft .NET Framework platform software, which provides the .NET runtime environment and .NET software-development libraries, Microsoft has issued the product's first service pack. The .NET Framework Service Pack 1 (SP1) release primarily addresses a security vulnerability that lets downloaded .NET code run with elevated permissions; the pack also includes other fixes aimed at COM interoperability, type libraries, and the .NET Common Language Runtime (CLR).
You can download the .NET Framework SP1 release from Windows Update or directly from the Microsoft Web site. The download is 1.4MB.
In related news, Microsoft has also fixed a "critical" security vulnerability in its Java runtime environment. The Java vulnerability affects Microsoft's Java Virtual Machine (JVM), and the company says that a fix released March 4 repairs the problem. You can download the fix from Windows Update, although Windows XP users who have installed Java will automatically receive the fix from Auto Update.