Perhaps redundant, but this may be of use.

Windows explorer can also be used with a wild card, and additionally filtered by. Depending on which version of Windows you have, Windows Explorer will look somewhat different. In principal though, you can do this:

1. Open Windows Explorer
2. Navigate to a suitable base directory (i.e., to limit/broaden the scope of the search). If for example you wanted to search all of the 'C' drive, make sure your are at the c: drive in the navigation tree. In the search field, type *.mgu (or whatever file type you are looking for). If you're songs are saved in Documents, start there. What you will get is a search limited to all *.mgu file types.

Alternatively (in Vista/Windows 7), Click the Windows button, and then in the Search field that opens, type*.mgu. If any such files are found, they will appear in the resultant files pane. Hover over that file with the mouse pointer, and the file path will appear.

There are other methods and advance search options that can be used with Windows Explore (depending on the version of Windows) that let you further filter/sort based on columns in the files pane (you can add/remove columns from the display), so check out the Windows Explorer help. However, Windows Explorer has historically had a distinct limitation (regardless of Windows OS version). That limitation is the inability to print out or save the directory listing or search results to a text file(although Vista/Win 7 can save searches for reuse later).

One of the key advantages of using the Command window option is the ability to save directory listings and filtered (like a search) directory listings as a text file. This is especially useful if you want a saved listing of one or more directories or searches with/without filtering. It's actually quite easy.

At the risk of repetition (and no insult intended to any), here is the Command window version (XP, Vista, Win 7):

1. Open the Command Prompt window (by default, the Command Prompt window opens to user's home directory, such as C:\users\Richard in my case). If you want to begin the search elsewhere, type

cd c:\path, where for example path = bb, or users\richard\documents

2. Here's an example:

dir /s *.mgu
Volume in drive C is COMPAQ
Volume Serial Number is (will be your volume here)

Directory of C:\Users\richard\Documents\BBW\NortonMusic

06/05/2012 10:06 AM 6,413 Sweet_Home_Chicago.MGU
1 File(s) 6,413 bytes

Total Files Listed:
1 File(s) 6,413 bytes
0 Dir(s) 73,114,984,448 bytes free

The /s option used above searches all sub-directories in the specified path.

By default, files will be sorted alphabetically in ascending order. There are several other options as others have mentioned.

If you want to save the results to a text file for later use, modify the command to:

dir /s *.mgu > mylist.txt

You can then open this file with any text editor or word processor. Really, the Command line for this purpose is easy once you do it a few times. And finding a file (rather than having to re-enter the song (as in your case) is worth the few minutes it takes to get comfortable with the dir command.

Either way, you don't need a 3rd party app to do this.

Richard