There has been number of users who have tried to install Windows Defender on Windows 2000 and receives an installation error that requires the GDI+. When trying to install Windows Defender Beta 2 on Windows 2000 SP4 you may receive an installation error:

This software requires GDI+. Please download the Windows 2000 Security
Software PreRequisite Pack.

To install Windows Defender on Windows 2000, follow these steps:

1) Get the download here.

http://www.microsoft.com/downloads/d...DisplayLang=en

2. Place the DLL file in \winnt\system32 (modify as needed for
your system).

3. Run the .MSI file to install Windows Defender.