Windows 7 - how to show thumbnails for the TP format?

Hi guys, this is my first post here

Now that i use WMP12 i notice the native support for TS videos and the thumbnails for those files, without the need of any other codecs, i have a lot of TS videos but i also have TP videos, I was just wondering if there is a way of showing thumbnails for the TP videos, which is pretty much the same as TS, in fact if i change the extension of the video from .tp to .ts, the system creates thumbnail for it, and plays it without problems.


So yeah, maybe some change inside the registry or something, and also media center doesnt recognize the tp extension even thought those videos are assigned to open with WMP12, i also have installed the klite codec pack 32bit and 64bit as well

i know you can say "well change all your tp videos to ts" but i have a lot, besides i have a lot of shortcuts to those files too

any suggestions???