I figured since it's technically running Windows 3.1, it'd be okay to post this here. If the mods feel it would work better under the dosbox forum, feel free to move it.
Okay, by "doesn't work", I mean the install seems to go well, but when I hit the "play sample" button, I get an error message saying "The install program was unable to call the movie player" and then another message saying that the installation has not been completed. If I try to run the movie player, I get a message saying that one of the library files is damaged.
A quicktime logo does appear on the Control Panel, but when I click on it, the driver window (I don't know the technical term for it) comes up, but it says it's not installed. When I go to the Drivers control panel and click on [MCI] Quicktime for Windows, I get an error that says "Cannot load the [MCI] QuickTime for Windows Driver. The driver file may be missing." Trying to reinstall Quicktime doesn't help.
I'll see if installing the sound blaster drivers works. Thanks for the suggestion.