error message

Hi, i´m from swiss and try now to explain what my problem is:
lately i got this message:
BSPlayer v0.86.493, Unhandled exception at EIP: 05713ED6
If you click 'Close' application will be terminated.
Please report this info to the author with Access violation what were you doing.
Access violation at address 05713ED6 in module 'divxdec.ax'. Write of address 00000000
EAccessViolation
, 0x004B48EF, 0x004B4B69, 0x004520BF, 0x0044972A, 0x77D13A5F, 0x77D13B2E, 0x77D13D6A, 0x77D141FD, 0x004C62AF, 0x77E5EB69
Bytes at EIP: 89 02 33 C0 C9 C2 08 00 8B F6 55 8B EC 81 45 08 40 FF


please tell me what is the meaning?

thank U

[adicoto]

Some details about CPU and Divx version please. And if you have installed a codec pack that bring you the divx codec ?