I had a similar problem. I have downloaded one big 4.5GB iso-file. It is just an iso file, no rar's included.
AB = 0.25.0, OS-filesystem=NTFS on WinXP.
After downloading AB just wrote Decoding but nothing happend at all. I did try to exclude the AB's temp-path in my McAfee Antivirus but that did not change anything.
In AB's temp folder was 12192 small files (4.5GB total).
In the log was this message:
[09-11-2008 11:53:43] [Dec] File C:\Programmer\AltBinz\temp\\357d4969b240d5dfed0b014eeb8b9af3\part.1 is locked by another program!
[09-11-2008 11:53:43] [Dec] Retrying in 5 seconds
Note the double \ in the path, this looks strange to me.
I tried various tell-me-who-locked-this-file applications but all of them said the file was not locked. I could also move the entire temp-folder without problem, so I dont think the file actually was locked.
Rebooting and/or changing download-path and downloading the file again to g:\temp did not change anything.
I tried the UUD32 application, dropping all the small tempfiles into UUD32, and that helped
Now I could extract the iso file from UUD32.
UUD32 did the trick, so I am happy.
I just dont know why AB couldn't do it itself
/streg