use DOSBox
http://www.dosbox.com/

Robertmo--I should have clarified in my post that I am using DosBox; the game came with its own version and runs from it. The DosBox website directed me here when I clicked on forums.

Then use the official dosbox version from our homepage rather than some
old version that this company packaged with the game without informing us.

You can't just replace the version of DOSBox that comes with the collection. The launcher that the collection uses has the 0.63 conf file hard coded into it. This is not compatible with 0.73. Users on the Steam forums have found a way around this, but that still does not address all of the myriad of other issues with the collection, of which there are many.

My new collection patches will update both DOSBox and the games. The version of KQ7 that they packaged with the last collection was 1.4, which had no DOS interpreter, so cannot be played in DOSBox without first installing Win3x in it. This game has a nasty speed bug that cannot be passed on modern PCs. My KQ patch will upgrade KQ7 to version 2.00b, which has a DOS interpreter and can be played in DOSBox. Since the launcher can't be used, the patches will create Windows shortcuts to launch the games, just like any Windows based game.

If you wish to see all the things that were wrong with the new collection, see this thread. There are similar problems with the other three collections, too. The patches fix all of these problems. And if you also own any of the missing games, the patch can even add them to the collections for you.