You're making too much of too little. Many programs use data files and assign them 
the dat extension. There is no single dat format. The only thing that file associations 
do is to assign an icon, and open a particular application when double clicking on 
that file type. You probably don't open any aps by double clicking on a dat file.







On Monday, January 21, 2008 at 1:59 pm, Dale wrote:

>After installing Nero, I found all my .dat extension files had been changed to 'Type: 

>Video CD Movie'.  I was able to use 'folder options' change the file association 

>to open .dat with Notepad, but all files with the .dat extension still show the 
Nero 

>icon, and are listed as video CD movie files, which is confusing when looking in 

>directories.

>

>Can I change the association so that .dat no longer belongs to Nero, or at least 

>change the icon, without digging into Nero itself? 

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