VSShell Isolated, "open with" opens TextEditor unnecessary
<p>Sorry for my poor English.</p>

<p>I'm developing a Visual Studio Shell Isolated application and I have created my extension ".proj". I have associated this extension using Setup project because I want to open proj files with "open with" command. When I use this option, file is processed by my VS package and additionally it is opened in Visual Studio's TextEditor.</p>

<p>How can I disable opening this file in TextEditor and make this file to be processed the way I implemented in package only ? I've been looking for proper registry hives but I have found nothing :(</p>

<p>Any ideas ?</p>
