Modify wmv with hex editor to remove url

Hello people,
i have a lot of wmv file made to deploy our business products...maybe cause of the software used to make them, when i see videos with media player INTERNET EXPLORER starts to go on"hasvideo.net" and visualization stop...
Opening file with hex editor, i can see where url is written, but if i brutally delete that code, i can'yt open the file (error : file damaged...)
What' s the right procedure to modify a file by a hex editor? is there a tool just to modify wmv header and remove this malicious url? how can i do to remove from all my wmv , better in background?
Thanks a lot, ask me for details...nanoweb
hasvideonet.JPG
Mattia MinerviniAsked:
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EirmanChief Operations ManagerCommented:
If this is a DRM problem this program will sort it out

http://www.aimersoft.net/drm-pro.html
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Mattia MinerviniAuthor Commented:
With Drm Pro the wmv file has no problem....I have the same result with simpler Windows Movie Maker....
But this means "to rip" all wmv, and if i have a video of 2 hours, i have to convert all video in batch processing.
It is not a DRM problem, cause these video are not protected.
For all these reasons, i want to open a wmv vith ex editor, make a "find" command using word = hasvideo.net , and removing the entry.
So i can avoid to reconvert about 80 gb of video!
Thank u so much for ur advice....but i want to modify with hex editor +  "rebuild" the file.
Nanoweb
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Mattia MinerviniAuthor Commented:
Opening this file with ex editor, i changed 55 (U) with 00 ( ).
In this way,malicious link cannot start caude of sysntax wrong.
So, i I have been able to modify all my wmv at once!
1)open file
2)make a find command with "hasvideo" string
3)change 55 with 00
4)save file
This is the solution!! thank u!!
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