Sory for the delayed responce, I will give application/x-unknown a try and see what hapens.
Will post update within day or so, might even setup a public login and alow you to see what I mean. Maybe ill get to it today after a game of chess.

Anything is possible but I dont think timeout, the reason being that it is not the filesize after downloading but rather the filesize reported in the directory listing on the server. There is no upload script, the server runs on a box in the corner of my room, I transfer the file from my work computer to the server via shared folder. After this transfer, exporer and my computer on the server machine report the filesize to be corect. It is only when you bring up the website and get the directory listing that the filesize is in corect. Tryed two server packages.

This unkown mime type i hope will do the trick so we will see.