This is a rough description of how to use your Macintosh CD version of a classic LucasArts game with ScummVM on Win32. Following procedure describes how to do it with "Sam & Max Hit the Road Macintosh CD-ROM" on Windows 2000 Professional. Your mileage may vary with other titles or versions of Windows.
You will need the "Windows Installer" from the download page. If you're using ScummVM version prior to 0.7.0 you additionally will need "ScummVM Tools Windows Installer" from same URL. To copy the game data file from the CD to your hard disc, you will need HFVExplorer. Make sure you get the "HFV Explorer installer" rather than the zip file. When you choose to download the zip file, make sure you read the readme included with HFVExplorer, to set it up properly.
You should be running as Administrator to install all of the tools. Everything else should work as a normal user. Run the ScummVM installers and allow them to install to the default location (C:\Program Files\ScummVM). Don't worry about overwriting files. Run the HFVExplorer installer and allow it to use its defaults.
Copying the game data file
Start up HFVExplorer; if you don't have a shortcut for it, find it in "c:\program files\HFVExplorer". It should open the HFS (Macintosh filesystem) CD-ROM automatically when you insert the disc. Make sure HFVExplorer is displaying hidden files: Select View->Options and enable "Show invisible Mac files" on the "File attributes" tab.
Now, look for the data file in the right pane. It will probably end with the word "Data" and will be the largest file on the volume. For instance, it is called "Sam & Max Data" on the "Sam & Max" CD-ROM. Select the data file and copy it (use Ctrl+C or Edit->Copy). In the left HFVExplorer pane, navigate to the directory where you want the game to reside on your hard disc. We recommend selecting drive C: and creating a new folder called "SamNMax" or a name that better reflects your particular game.
Paste the data file (with Ctrl+V or Edit->Paste) and allow HFVExplorer to choose the copy mode. Now, wait while the program copies several hundred megabytes from the CD. When the file is copied, close HFVExplorer.
NOTE: If you are using ScummVM version 0.7.0 and above, you do not need this. Just point ScummVM to folder where you copied the Data file. (Hint: If you're using older version we strongly recommend to upgrade)
Open a command prompt window and change the directory to your newly created folder. Then, run extract_scumm_mac on the data file to extract its contents. For example, type the following for Sam & Max, making sure you use double quotes around the data filename:
cd c:\SamNMax c:\program files\ScummVM\tools\extract_scumm_mac "Sam & Max Data"
Once the several files are successfully extracted, you can delete the data file or move it to a separate folder. Now, you can fire up ScummVM and add the new game to play it. The ScummVM documentation README describes ScummVM and extract_scumm_mac usage in detail. If you have any questions, look at the ScummVM FAQ, the ScummVM Documentation, and the ScummVM forums.
If you are using ScummVM on Mac OS X, you may find How to Rescumm for Dummies! useful.
Note: The application is now called "extract_scumm_mac" and in this guide it is still called "rescumm".