Using "VLC 0.9.0-git-20080419-0003" running on a win2ksp4 box I get an error message every time I exit VLC, saying "Runtime Error! Program: C:\...\vlc.exe abnormal program termination". The error doesn't show up if I start VLC and quit before playing a movie, but it always shows up if I play a movie (any movie) in VLC.
If I break into windbg.exe at this point, the relevant thread has the following stacktrace:
0:006> ~0kb
ChildEBP RetAddr? Args to Child
0022f750 77e33630 00000000 00000000 0000ffff USER32NtUserWaitMessage+0xb
0022f784 77e44327 005f02ba 00000000 00000001 USER32DialogBox2+0x216
0022f7a8 77e34139 77e10000 00253400 00000000 USER32InternalDialogBox+0xd1
0022fa60 77e344d5 00012010 0022fc00 ffffffff USER32SoftModalMessageBox+0x754
0022fba8 77e339cb 00000001 00000000 00000028 USER32MessageBoxWorker+0x247
0022fc00 77e34260 00000000 00240ad0 002353f0 USER32!MessageBoxExW+0x77
0022fc30 77e333fc 00000000 0022fdb0 78032e68 USER32!MessageBoxExA+0xa0
0022fc50 7800bec3 00000000 0022fdb0 78032e68 USER32!MessageBoxA+0x49
0022fc70 78007e22 0022fdb0 78032e68 00012010 msvcrt__crtMessageBoxA+0x81
0022fe50 78006955 0000000a 6a389497 6a4df060 msvcrt!_NMSG_WRITE+0x11f
0022fe58 6a389497 6a4df060 6a407cb0 00000161 msvcrt!abort+0x7
WARNING: Stack unwind information not available. Following frames may be wrong.
0022fe98 6a37a706 6a4df060 ffffffff 0022fed8 libvlc!_vlc_object_release+0x3f7
0022fea8 6a305893 6a4df060 0000043c 003fa5cc libvlc!_vlc_mutex_init+0xb6
0022fed8 6a302220 003f646c 00000000 01013fe0 libvlc!libvlc_InternalDestroy+0x193
0022fef8 004015a4 00000000 00000000 00000001 libvlc!VLC_Destroy+0x30
0022ff58 004010a7 004012f0 00401066 0022ff78 vlc+0x15a4
0022ffa0 00401123 00000002 00000000 00000000 vlc+0x10a7
0022ffc0 7c5989d5 00000000 00000000 7ffdf000 vlc+0x1123
0022fff0 00000000 00401110 00000000 000000c8 KERNEL32BaseProcessStart+0x3d
