Remove memory or try limiting memory with himemx

As DosFreak said, limiting or removing the amount of memory available helps in those situations, try with 64MB RAM at least. Other utilities that can limit the amount of memory like HIMEMX are XMSDSK (a ramdisk driver) and LIMITMEM.

BTW, Alien Trilogy speeds up way too fast on several parts with fast CPUs like the PIII and the GeForce FX 5500 video card won't work well with hi-color mode. At least there is the Throttle utility for slowing down that computer. It isn't perfect, but it works in this case and make sure that the -C command line switch is entered so the CPU cache won't be disabled which would make it way slower than usual. I recommend this variant of Throttle if your motherboard is ASUS branded: link.

Thanks guys for hints. Will try those.

So the problem still exists. Limitmem and Himemx are not warking at all in freedos. But I've found burnmem.sys and its working, limiting my ram to 16MB. Alitn Triloly installer still doesnt work - communicating need of 8MB ram:-(

🤔

Try the patch 2.0 of Alien Trilogy: https://www.patches-scrolls.de/patch/298/7/19303

Check the README file, which has the following information:

1Fixes.
2------
3
4This patch fixes many problems including incompatibilities with the
5following video cards:
6
7Matrox Mystique
8Matrox Millenium
9Cirrus Logic
10Diamond SpeedStar
11Diamond Viper
12ARK 2000PV (including Diamond Stealth Graphics 2001)
1364 megabyte install error

The "64 megabyte install error" fix seems that it will help you. In my case, I only used it after installing the game without a hitch.

Gmlb256 wrote on 2022-12-01, 22:21:

:thinking: […]
Show full quote

🤔

Try the patch 2.0 of Alien Trilogy: https://www.patches-scrolls.de/patch/298/7/19303

Check the README file, which has the following information:

Copy code to clipboard

1Fixes.
2------
3
4This patch fixes many problems including incompatibilities with the
5following video cards:
6
7Matrox Mystique
8Matrox Millenium
9Cirrus Logic
10Diamond SpeedStar
11Diamond Viper
12ARK 2000PV (including Diamond Stealth Graphics 2001)
1364 megabyte install error

The "64 megabyte install error" fix seems that it will help you. In my case, I only used it after installing the game without a hitch.

Now, it works. Thank you.

moulder wrote on 2022-12-01, 22:59:

Gmlb256 wrote on 2022-12-01, 22:21:

:thinking: […]
Show full quote

🤔

Try the patch 2.0 of Alien Trilogy: https://www.patches-scrolls.de/patch/298/7/19303

Check the README file, which has the following information:

Copy code to clipboard

1Fixes.
2------
3
4This patch fixes many problems including incompatibilities with the
5following video cards:
6
7Matrox Mystique
8Matrox Millenium
9Cirrus Logic
10Diamond SpeedStar
11Diamond Viper
12ARK 2000PV (including Diamond Stealth Graphics 2001)
1364 megabyte install error

The "64 megabyte install error" fix seems that it will help you. In my case, I only used it after installing the game without a hitch.

Now, it works. Thank you.

You're welcome!

Is there any solution to.correctly display graphics in 16bit mode on Fx5500? The screen is all green and messy. Only in 256 colors picture is ok.

So far, unfortunately, no. 🙁

I believe that the hi-color mode uses 15bpp which nVidia cards never supported.