so in my library when i try to download TWOM - like all other games - the .exe extension is missing in the filename? why is that?

also it says version 4.0 and its alot larger than my previous install file (1.5gb instead of 1.05gb) but it seems to be the same version that i already have (the 50mb patch file says so)? same for the tlo download file?

[edit] the missing extenstion seems to be an IE problem. but what about the version and size? file size is the same btw no matter if i do classic installer or not.

This update is for the new DLC.
For some weird reason they include the required object in the main game and the DLC package will be very small.