Unknown file format DIV3

[JN]

I searched many forums (including the one on this server) but was not able to find solution for my problem. I don't think that's a BSPlayer bug, but I think, that maybe some programmer of BSPlayer could help. Here's my problem:
I have several AVI movies (for example Moulin Rouge or Panic Room) which I'm not able to play in BSPlayer. I alwas get message 'Unknown file format DIV3'. After many suggestions from other forums I did this:
- unistalled all codecs, all players (including Windows Media player 9
upgrade).
- After that, opening mentioned movie in GSpot reported no codec able to play this movie (description of video format is div3, DivX 3 Low-Motion)
- installed newest DirectX, restarted PC
- installed ffdhow
- GSpot reports 'codec is installed' - 'ffdshow MPEG-4 Video Decorder, ... pres button Render
- but after pushing Render button, message changes : Nonetheless
DirectShow is apparently NOT able to play this file. No further
information is available concerning the apparent discrepancy.' The error code is 0x80040111: (unknown)
- BSPlayer reports Unknown file format (DIV3), setting 'Use
DivX 4 decoder for MP43, DIV3, DIV4' also doesn't work

In some forums was suggested, that file may be corrupted, that I must fix it with DivFix. I don't think so. Reason:
- In DivX Player 2.1 it plays perfectly, I am also able open it in VirtualDub.
- So I tried to fix this file with DivFix as recommended. It reported several errors (Corrupted data at ... ) , first error at 1:18
- I opened this fixed file in GSpot and bingo! It could be rendered !
- BUT ! The repaired file I am able to play only till 1:18 (previously
reported error in DivFix), after that the picture is totally corrupted
, only coloured smudges are seen.

I have Windows 2000 (SP3), tried it on 2 PCs with similar configuration, problem is on both. Can somebody help me ?