Illegal operation:
Code: C0000005h, flags: 00000000h, address: 017F1D21h
Access violation, operation: read, address: 017F1D21h
Call path:

This is the first crash logged by this instance.
Access violation, operation: read, address: 017F1D21h
Access violation, operation: read, address: 017F1D21h
Registers:
EAX: 00000000, EBX: 0000012C, ECX: 7C8025F0, EDX: 7C90E4F4
ESI: 0000012C, EDI: 7C802520, EBP: 0216FFEC, ESP: 0216FFB0
Unable to identify crash location

Loaded modules:
foobar2000                       loaded at 00400000h - 004F3000h
ntdll                            loaded at 7C900000h - 7C9B0000h
kernel32                         loaded at 7C800000h - 7C8F7000h
COMCTL32                         loaded at 773C0000h - 774C3000h
msvcrt                           loaded at 77C00000h - 77C58000h
ADVAPI32                         loaded at 77DC0000h - 77E6C000h
RPCRT4                           loaded at 77E70000h - 77F01000h
GDI32                            loaded at 77F10000h - 77F57000h
USER32                           loaded at 7E360000h - 7E3F1000h
SHLWAPI                          loaded at 77F60000h - 77FD6000h
SHELL32                          loaded at 7C9C0000h - 7D1DA000h
ole32                            loaded at 774D0000h - 7760D000h
shared                           loaded at 10000000h - 10029000h
comdlg32                         loaded at 76380000h - 763C9000h
uxtheme                          loaded at 5B260000h - 5B298000h
foo_input_std                    loaded at 00A30000h - 00B42000h
foo_ui_std                       loaded at 00B50000h - 00BA7000h
foo_cdda                         loaded at 00BC0000h - 00BF5000h
foo_albumlist                    loaded at 00C20000h - 00C67000h
OLEAUT32                         loaded at 77110000h - 7719C000h
foo_dsp_std                      loaded at 00C90000h - 00CD1000h
foo_rgscan                       loaded at 00D00000h - 00D48000h
foo_converter                    loaded at 00D70000h - 00DD9000h
foo_masstag                      loaded at 00E00000h - 00E50000h
foo_unpack                       loaded at 00E70000h - 00E9E000h
foo_abx                          loaded at 00EC0000h - 00EF3000h
foo_ac3                          loaded at 00F20000h - 00F4C000h
foo_dumb                         loaded at 00F70000h - 00FD1000h
foo_dsp_tube                     loaded at 01000000h - 01024000h
foo_out_ks                       loaded at 01040000h - 0106A000h
SETUPAPI                         loaded at 77910000h - 77A04000h
foo_input_dts                    loaded at 01090000h - 010F5000h
foo_freedb2                      loaded at 01120000h - 01160000h
foo_xm                           loaded at 01180000h - 011A9000h
WMVCore                          loaded at 15110000h - 1536A000h
WMASF                            loaded at 11C70000h - 11CA9000h
WININET                          loaded at 771A0000h - 7724A000h
CRYPT32                          loaded at 77A70000h - 77B05000h
MSASN1                           loaded at 77B10000h - 77B22000h
perl58                           loaded at 28000000h - 280C9000h
foo_masstag_addons               loaded at 011D0000h - 011DE000h
MSVCR80                          loaded at 78130000h - 781CB000h
foo_freedb2_fix                  loaded at 01200000h - 01215000h
foo_channel_mixer                loaded at 01280000h - 012BB000h
foo_midi                         loaded at 012C0000h - 0136A000h
foo_run                          loaded at 01370000h - 0139B000h
foo_input_monkey                 loaded at 013C0000h - 0140A000h
foo_winamp_spam                  loaded at 01430000h - 01460000h
foo_out_asio                     loaded at 01470000h - 0149F000h
correct                          loaded at 015F0000h - 015F6000h
HidKeybd                         loaded at 01690000h - 01699000h
HID                              loaded at 68E60000h - 68E69000h
CLBCATQ                          loaded at 76FC0000h - 7703F000h
COMRes                           loaded at 77040000h - 77107000h
VERSION                          loaded at 77BF0000h - 77BF8000h
WINMM                            loaded at 76B20000h - 76B4E000h
serwvdrv                         loaded at 5D270000h - 5D277000h
umdmxfrm                         loaded at 5B590000h - 5B597000h
WINTRUST                         loaded at 76C20000h - 76C4E000h
IMAGEHLP                         loaded at 76C80000h - 76CA8000h
DBGHELP                          loaded at 59C60000h - 59D01000h

Stack dump analysis:
Address: 0101D379h, location: "foo_dsp_tube", loaded at 01000000h - 01024000h
Address: 7C80B683h, location: "kernel32", loaded at 7C800000h - 7C8F7000h
Symbol: "GetModuleFileNameA" (+000001B4h)
Address: 0101D379h, location: "foo_dsp_tube", loaded at 01000000h - 01024000h
Address: 7C839A00h, location: "kernel32", loaded at 7C800000h - 7C8F7000h
Symbol: "ValidateLocale" (+000002B0h)
Address: 7C80B690h, location: "kernel32", loaded at 7C800000h - 7C8F7000h
Symbol: "GetModuleFileNameA" (+000001C1h)

Version info:
foobar2000 v0.9.4.4
UNICODE

Additional info:
Default User Interface 0.9acc  (foo_ui_std)
FLAC Decoder 1.1.0  (foo_input_std)
RAR reader 1.1  (foo_unpack)
XM Radio Online Player 1.0.3  (foo_xm)
WMA Decoder 1.1  (foo_input_std)
Masstagger 1.6  (foo_masstag)
CD Audio Decoder 2.1.1  (foo_cdda)
DUMB module decoder 0.9.7.5  (foo_dumb)
Winamp API Emulator 0.96  (foo_winamp_spam)
Masstagger Addons 0.3.2  (foo_masstag_addons)
Channel Mixer 0.9.6.2  (foo_channel_mixer)
DTS decoder 0.1.7  (foo_input_dts)
ASIO support 1.2.5  (foo_out_asio)
AC3 decoder 0.7  (foo_ac3)
Album List 3.2.0  (foo_albumlist)
Tube Sound 0.6  (foo_dsp_tube)
ZIP/GZIP reader 1.0  (foo_unpack)
Monkey's Audio decoder 2.1.2  (foo_input_monkey)
Kernel Streaming Output 1.2.2  (foo_out_ks)
Converter 1.0.1  (foo_converter)
ReplayGain Scanner 2.0.2  (foo_rgscan)
Standard DSP array 1.0  (foo_dsp_std)
Freedb2 characters fixer (masstagger addon) 0.02  (foo_freedb2_fix)
Standard Input Array 1.0  (foo_input_std)
Run services 0.3.2  (foo_run)
foobar2000 core 0.9.4.4  (Core)
freedb Tagger 0.5.2a  (foo_freedb2)
MIDI synthesizer host 1.7  (foo_midi)
ABX Comparator 1.3.1  (foo_abx)