Ai Yori Aoshi MCE Fix 1.0

From about 1995 to 1998 it was common practice for setup programs to launch using a Windows 3.1 16-bit loader stub. This gave installers the ability to package multiple binaries for Win16, Win32s, Win32, and Windows NT for Alpha CPUs. At the time it was a reasonable thing to do since all of these platforms could execute 16-Bit Windows 3.1 applications.

Today, neither ReactOS nor 64-bit Microsoft Windows implement the ability to run 16-bit Windows 3.1 applications. The result is that there are many, many 32-bit programs that would run fine on these OSes, but are prevented from installing.
Download the InstallShield 3 Engine without Windows/Wine:

View the version properties of the Setup Launcher, usually called SETUP.EXE. (under Windows, right click, select Properties, and click the "Version" tab).

If the setup version is 3.xx.xxx, then as a convenience, you may download the Setup Engine executable directly from here rather than manually extracting it.

Place this file in a WRITABLE folder with the rest of your application install files and run it instead of setup.
Credit: https://reactos.org/forum/viewtopic.php?p=90280

The original update patches for DYSNOMIA and DYSNOMIA ExBurst retrieved from 2CCP's defunct website using the Internet Archive and downloading the original files from their (still active) Google Drive links. The included readme file features details about each patch and how to use them to upgrade the original DYSNOMIA (the original Comiket 75 release) to DYSNOMIA ExBurst or to update the latter from a later re-release (e.g. DLsite, the Comiket 77 release). These patches are uploaded for posterity and provided as-is.

Official patch for Enter the Matrix.
Source: Atari Support page (August 2, 2003. Retrieved with Wayback Machine)

Mortyr 2: For Ever patch 1.352

It fixes a rare issue in Windows XP SP2 ("flying up" when the game starts) and some other minor problems. Patch works with the following language versions: English, German, French and Polish. Other language versions are already updated to v1.352.

Taken from the official website (archived).

This is the v1.06 update patch for the original Armored Hunter GUNHOUND (not EX) for those that have gotten a hold of the original CD-ROM or DLsite releases of the game. The zip archive simply contains a new executable with the updates and fixes. Just extract the new executable and overwrite the original when prompt. This file was pulled from Dracue Software's shut down official game website via Wayback Machine and being uploaded as-is here for posterity.