@rogerius1st it would be best if you could provide the workflow you have already done. Also from your description it is difficult to get a complete idea how the URLs are constructed. Is there a list of all the options that might occur in a selection if you want this to be flexible or to iterate over it.
Also what is the role of the “200801” in the URL. Is this fixed (like SIASUS)?
And again I am not sure if it will be feasible or easy to access TabWin with external tools or decompress/decode your files with a script. Also from what I saw on the site. Some information seems to be stored (just?) as tab delimited files. Might that be an alternative to the DBC files?