It's 2011, and ... you don't care. All you want to know is how not to be stuck at 640x480 and 16 colors on Windows 98 guest on VirtualBox and guest additions won't ever be made on Windows 98 or 95.

1. Windows 98 For Virtualbox Download
2. Windows 98 Cd-rom
3. Free Windows 98 Cd-rom Download

How easy is it? go to http://bearwindows.zcm.com.au/vbe9x.htm and download, for instance, 2010.06.01 (click one of the ? on the right).

Dec 23, 2014  Hi guys:) I want to install Windows 98 onto my MacBook Air via VirtualBox. However my Windows 98 CD doesn't work when I try to make it into an ISO on another computer (MacBook Air doesn't have CD. Most CD-ROMs available for Windows 95/98 are not bootable. VirtualBox 4.1 provides for Windows-98-compatible USB. This topic is only for additions to this.

Now you have a .zip. Extract it.

Windows 98 For Virtualbox Download

Make a .iso from that folder with your favorite program.
You now can mount that on your Windows 98 image.
Update the driver from Device manager and point it to the VBE9XUNI folder and let it install. Reboot and you have color!

Windows 98 Cd-rom

YRMV, don't blame me if it doesn't work, etc. All I can say is it worked well for me.

Free Windows 98 Cd-rom Download

I suppose you're also looking for AMD PCnet drivers at the same time. Stop. Don't panic yourself about it, but stop the vm, go to network, advanced, and change the nic to the one above it -- NOT the FAST one. (have your Windows 98 CD available, and ... it is installed.)
2015: updated to a different domain.