You can download Winup 3.1 from our software library for free. This download was checked by our antivirus and was rated as virus free. Winup lies within System Utilities, more precisely System Optimization. The actual developer of the free program is Winup.
From the developer:
Winup is a practical self installed package that contains all Microsoft official patches for Windows XP.
You may want to check out more software, such as I8kfanGUI, The Ultimate Troubleshooter or XP TCP/IP Repair, which might be related to Winup.