Read Me First
This System Update includes features for networking, security and accessibility issues. It is part of the Windows® 98 Customer Service Pack. The following updates are included the Windows 98 Customer Service Pack:

• Windows 98 System Update
• Internet Explorer 4.01 Service Pack 2*
• Windows 98 Year 2000 Updates*
• Windows 98 Year 2000 Update 2*
• Outlook® Express Year 2000 Update*

For best performance and reliability of your Windows PC, Microsoft recommends that you download all the components of the Service Pack from the Windows Update Product Catalog if you have not done so already.

For more information on Windows 98 Second Edition, click here.

This system update addresses the following issues:

• Active Accessibility
  This update addresses issues with color schemes when using Microsoft Active Accessibility options.
• Computer Does Not Resume To Recognize USB Device From Standby
  If you connect a Universal Serial Bus (USB) device to your Windows 98 computer while the computer is in Standby mode, the computer does not resume. The computer remains in Standby mode and may not recognize the USB device once it has resumed.
• Bulk Transfer URBs Can Specify More Than 64 Bytes
  The Universal Serial Bus (USB) 1.00 specification defines bulk transfers to be 4, 8,16, 32 or 64 bytes. However, the TransferBufferLength field of _URB_BULK_OR_INTERRUPT_TRANSFER can specify a much larger byte size. The USB specification limits the bulk transfer size to a maximum of 64 bytes at the port driver level.
• Computer with Plug and Play Network Adapter Is Not Found
  After you have upgraded to Windows 98 on a Windows 95-based computer with a Plug and Play Network Interface Card (NIC) installed, your computer may not be visible in Network Neighborhood to other computers on the network.
• System Policy to Require Validation by Network May Not Work
  If you are using a system policy that requires validation by the network for Windows access, you may be able to access the desktop even when the network does not validate your user account.
• Computer Hangs After 49.7 Days
  If your computer is left running for 49.7 days without restarting, your Windows 98 computer may stop responding (hang). This is caused by a problem with the timing algorithm in the Vtdapi.vxd file.
• New Dialing Rules for Spain and Italy Require TAPI Update
  A new numbering and dialing plan for Spain became effective on April 3, 1998. The previous numbering and dialing plan was discontinued on June 5, 1998. As a result, when using a computer running Windows 98 you may not be able to correctly dial long-distance telephone numbers if your current dialing location is in Spain or Italy.

How to download and install

1. Click the Download button at the top or bottom of the page.
2. Follow the instructions on your screen.

How to uninstall

1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Select Windows 98 System Update.
4. Click Add/Remove.