If you mean the last game to support Windows 98SE, we already have a topic about this:
Last PC games supporting Windows 9x?

and here's a list of the last 98-compatible versions of general software on an MSFN topic:
http://www.msfn.org/board/topic/105936-last-v … r-windows-98se/

EdmondDantes wrote:

EDIT: By the way, the Geforce 4 had three outputs... one was VGA, another was DVI, but then there was one that LOOKED like an S-Video output, but it turned out it wasn't. Or if it was, it had more pin inputs then any of my actual S-Video cables. Does anyone know what that output was?

Most likely 7-pin S-Video, which can sometimes work with a regular 4-pin S-Video cable but on some cards it may require a special adapter to support composite, 4-pin S-Video, and even component.

There's still software with new 98SE compatible updates coming out. Often when 98SE support got dropped, especially in games, it only meant no user support and reduced QA. It lived on alongside 2K/XP for years. The better question is at what point it's completely safe to switch to an NT based system with their more limited compatibility, which is no earlier than 2001.

My Geforce Ti 4200 came with an adapter for 2x composite and 2xSvideo. One pair for video-in and one for Video-out.

KCompRoom2000 wrote:

If you mean the last game to support Windows 98SE, we already have a topic about this: Last PC games supporting Windows 9x? […]
Show full quote

If you mean the last game to support Windows 98SE, we already have a topic about this:
Last PC games supporting Windows 9x?

and here's a list of the last 98-compatible versions of general software on an MSFN topic:
http://www.msfn.org/board/topic/105936-last-v … r-windows-98se/

Thanks. I didn't know about those topics and they are some interesting reading.

Right now I'm internally debating whether my next comp build would be a 98SE/XP dual-boot or if it would be pure XP. I'm currently bidding on a Gigabyte motherboard with 3.0ghz pentium 4 (intentionlly choosing a single-core due to possibility of using Win98) and 2gb of RAM, tho I'm aware the RAM might cause Win98SE to be basically uninstallable.

Mainly I've just always belived that there's no kill like overkill but in this case I'm wondering how much overkill is too much for a comp I'm building basically to play Myst V and possibly Doom 3.

* That said, the idea of not building a new comp at all and instead just retiring my beloved Voodoo 3 in favor of the Geforce is entirely still on the table, since when the Geforce has the comp to itself it works just fine and I haven't seen any broken compatibility with older games, not even when I run in pure DOS mode.

Most likely 7-pin S-Video, which can sometimes work with a regular 4-pin S-Video cable but on some cards it may require a specia […]
Show full quote

Most likely 7-pin S-Video, which can sometimes work with a regular 4-pin S-Video cable but on some cards it may require a special adapter to support composite, 4-pin S-Video, and even component.

The 7-pin looked a lot like what I saw.

For reference, I just recalled you can link to finished auctions. This is the exact card I bought:

http://www.ebay.com/itm/MSI-NVIDIA-GeForce4-T … 872.m2749.l2649

As has been said, the title question doesn't really make sense. A better one would be: what was the last game/program to run correctly on 98se but not on modern (WDDM) Windows?