Microsoft stated that this ensures that users received notification of critical updates in a timely manner. In a posting to Bug Traq, he explained that, "every single Windows 98 computer that wishes to get an update has to rely on a single host for the security.
If that one server got compromised one day, or an attacker cracks the [Microsoft] DNS server again, there could be millions of users installing trojans every hour. Unlike its predecessor, Automatic Updates can download and install updates.
Packages simply labeled updates correct software bugs unrelated to security.
The former expands the core service to include other Microsoft products, such as Microsoft Office and Microsoft Expression Studio.
Their release has always impacted the operating system's eligibility for receiving technical support.
Definition updates for the antivirus products are provided through the service as well.
The initial focus of Windows Update was free add-ons and new technologies for Windows.
Security fixes for Outlook Express, Internet Explorer and other programs appeared later, as did access to beta versions of upcoming Microsoft software, e.g., Internet Explorer 5.