If merging 'a' and 'b' together doesn't work, extract the files again and keep them separate, navigating to where the files from the second disk are located when prompted by the install wizard. bin files that need to be extracted, the data files in the second file (marked 'b' or '2', as opposed to 'a' or '1') can normally be placed in the same folder. If there is a setup.exe file, it will extract the files itself as part of the setup. bin WITHOUT a setup.exe file, you'll also need a disk imaging program. This was mentioned by WarrenHall and BlackPhantom745 previously. iso, or gives an error message of some variation of 'disk image corrupted', use a disk imaging program like PowerISO or AnyBurn to extract the files. This is also how I got STFD to work, but there's a guide below by katiekat823 posted that may be helpful if your game doesn't work. The majority of these games were made with Windows 7 in mind, but SCK in particular needs to run on Windows XP or 98. If you're running Windows 10 or 11, try working backwards until you find a version that works.

Go to 'Compatibility' and change the Compatibility mode to run the program in an older version of Windows. If the game still doesn't work after installing as an admin, try left-clicking the Game.exe file and clicking 'Properties'.

Installing the DirectX End-User Runtime has a bunch of the legacy versions that will ensure your games work with just the one DirectX download/install. The version included with these games is outdated anyway. You can install DirectX yourself from the microsoft website if you don't already have it. Allow permissions and then continue the install as normal. Ensure you install all games as an admin: left-click the setup.exe file and navigate to 'Run as administrator'.

(Except MID, which I bought, and SCK, which I only played the Remastered version of.) These installs can be a little confusing if you aren't used to them, so here's a few quick tips and tricks if you're having issues:

Free download nancy drew bento box