Free Operating Systems & Updates for Windows

This update resolves the "Service Control Manager Named Pipe Impersonation" security vulnerability in Windows 2000 and is discussed in Microsoft Security Bulletin MS00-053. Download now to prevent a malicious user from creating or predicting pipes that...

Microsoft has released a patch that fixes the following problem; with Microsoft File Replication Service (FRS) enabled on Distributed File System (Dfs) root alternates, each time a DFS link is added morphed directories are created. This is because DFS...

Note Windows 2000 Service Pack 2 (SP2) is now available, and provides the latest updates to the Windows 2000 family of operating systems. Windows 2000 Service Pack 1 (SP1) is a collection of fixes in the following areas: setup, application compatibility,...

This utility analyzes the state of domain controllers in a forest or enterprise and reports any problems to assist in troubleshooting. As an end-user reporting program, DcDiag encapsulates detailed knowledge of how to identify abnormal behavior in the...

This update resolves two security vulnerabilities in Internet Information Services (IIS) 5.0, the "Absent Directory Browser Argument" vulnerability and the "File Fragment Reading via .HTR" vulnerability. Install this update to prevent a malicious user...

This update resolves the "ResetBrowser Frame" and "HostAnnouncement Flooding" security vulnerabilities in Windows 2000 and is discussed in Microsoft Security Bulletin MS00-036. Download now to prevent a malicious user from denying network users the...

Microsoft has released a patch that eliminates two security vulnerabilities, one affecting Microsoft Windows NTA 4.0 and Windows 2000, and the other affecting Windows NT 4.0 only. Under certain conditions, the vulnerability could allow a malicious user to...

The Office 2000 UA Control Update eliminates a security vulnerability in the Microsoft Office 2000 family of suites and programs, including PhotoDraw 2000, Publisher 2000, Microsoft Project 2000 and FrontPage 2000. Since the existing control could allow...

This update resolves the "Malformed Extension Data in URL" security vulnerability in Internet Information Server (IIS) 5.0 and IIS 4.0. Installing this update will prevent a malicious user from slowing or temporarily stopping performance on your Web...

Microsoft has released a patch that eliminates a security vulnerability in Microsoft Windows NT 4.0 and Windows 2000. The vulnerability could allow a malicious user to make some or all of the memory on an affected server unavailable, potentially slowing...