Scanner.exe crashes out when presented with very long filenames. I discovered that my music library contained a file called:

"F:\More Music\Classical\Liszt\Complete Piano Works Volume 23\01 - HAROLD EN ITALIE - Symphonie en 4 parties, op. 16 (Berlioz, 1834)- partition de piano avec la partie d'alto, S472 (c1836, pub 1879)- 1. Harold aux montagnes - Scenes de melancolie.flac"

I invoked scanner.exe from the command line with the following command
   scanner -d_scan -d_info e:\music
and it followed a Windows shortcut onto F:

I have Visual Studion installed, so I got a dialog box with the message:
  "An unhandled win32 exception occurred in scanner.exe [820]."

The last page of output from scanner.exe was:

2007-01-27 14:38:36.0404 -- Track has no genre
2007-01-27 14:38:36.0465 -- Track has contributor 'Liszt' of role 'ARTIST'
2007-01-27 14:38:36.0467 -- Track has 1 contributor(s)
2007-01-27 14:38:36.0470 -- Track primary contributor is 'Liszt' (id: [94])
2007-01-27 14:38:36.0472 -- Checking for discs
2007-01-27 14:38:36.0503 -- Same album 'Complete Piano Works Volume 23' (id: [10
16]) than previous track
2007-01-27 14:38:36.0521 -- Updating album 'Complete Piano Works Volume 23' (id:
 [1016]) with columns:
2007-01-27 14:38:36.0522 --- titlesort : COMPLETE PIANO WORKS VOLUME 23
2007-01-27 14:38:36.0524 --- titlesearch : COMPLETE PIANO WORKS VOLUME 23
2007-01-27 14:38:36.0527 --- year : 0
2007-01-27 14:38:36.0529 --- contributor : 94
2007-01-27 14:38:36.0536 -- Track has album 'Complete Piano Works Volume 23' (id
: [1016])
2007-01-27 14:38:36.0567 -- Contributor 'Liszt' (id: [94]) linked to album 'Comp
lete Piano Works Volume 23' (id: [1016]) with role: 'ARTIST'
2007-01-27 14:38:36.0619 cue file type for file:///F:/More%20Music/Classical/Lis
zt/Complete%20Piano%20Works%20Volume%2023/Liszt%20-%20Complete%20Piano%20Works%2
0Volume%2023.cue
2007-01-27 14:38:36.0625 ScanDirectory: Adding playlist file:///F:/More%20Music/
Classical/Liszt/Complete%20Piano%20Works%20Volume%2023/Liszt%20-%20Complete%20Pi
ano%20Works%20Volume%2023.cue to database.
2007-01-27 14:38:36.0664
2007-01-27 14:38:36.0666 newTrack(): New Playlist: [file:///F:/More%20Music/Clas
sical/Liszt/Complete%20Piano%20Works%20Volume%2023/Liszt%20-%20Complete%20Piano%
20Works%20Volume%2023.cue]
2007-01-27 14:38:36.0668 newTrack(): readTags is 1
2007-01-27 14:38:36.0678 cue file type for F:\More Music\Classical\Liszt\Complet
e Piano Works Volume 23\Liszt - Complete Piano Works Volume 23.cue
2007-01-27 14:38:36.0680 Info: no title found, calculating title from url for fi
le:///F:/More%20Music/Classical/Liszt/Complete%20Piano%20Works%20Volume%2023/Lis
zt%20-%20Complete%20Piano%20Works%20Volume%2023.cue
2007-01-27 14:38:36.0682 Plain title for: file:///F:/More%20Music/Classical/Lisz
t/Complete%20Piano%20Works%20Volume%2023/Liszt%20-%20Complete%20Piano%20Works%20
Volume%2023.cue
2007-01-27 14:38:36.0686  is Liszt - Complete Piano Works Volume 23
2007-01-27 14:38:36.0828 newTrack(): Created track 'Liszt - Complete Piano Works
 Volume 23' (id: [14495])
2007-01-27 14:38:36.0864 scanPlaylistFileHandle: will scan file:///F:/More%20Mus
ic/Classical/Liszt/Complete%20Piano%20Works%20Volume%2023/Liszt%20-%20Complete%2
0Piano%20Works%20Volume%2023.cue, base: file:///F:/More%20Music/Classical/Liszt/
Complete%20Piano%20Works%20Volume%2023