Create custome file extention

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I am tring to make some file extention associated to my application like make any file with .ztr work directly with my app when user double click that file I am using VS2012 , C# , Windows 7 I did simulate this Example here
https://www.youtube.com/watch?v=s_YUcBxc5xM[^]

sure with some modification like fix Import Dll put also faild.

C#

public static void Register   (string Ext,string Program,string Ico)
{
    string prog = Path.GetFileName(Program);
    RegistryKey file = Registry.CurrentUser.CreateSubKey("Software\\Classes\\"+Ext);//.osa
    RegistryKey App = Registry.CurrentUser.CreateSubKey("Software\\Classes\\Applications\\" + prog);//osama.exe
    RegistryKey Link = Registry.CurrentUser.CreateSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\" + Ext);//.osa

    file.CreateSubKey("DefultIcon").SetValue("", Ico);
    file.CreateSubKey("PerceivedType").SetValue("","Text");

    App.CreateSubKey("shell\\open\\command").SetValue("", "\"" + Application.ExecutablePath + "\"%1");
    App.CreateSubKey("shell\\edit\\command").SetValue("", "\"" + Application.ExecutablePath + "\"%1");
    App.CreateSubKey("DefultIcon").SetValue("", Ico);

    //There is Change here you 
    Link.CreateSubKey("UserChoice").SetValue("Progid", Program);
    Invoke.SHChangeNotify(0x08000000, 0x0000, IntPtr.Zero, IntPtr.Zero);
}

Posted 25-Feb-14 21:14pm

osamaworx

Updated 25-Feb-14 21:20pm

Maarten Kools

v2

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Kornfeld Eliyahu Peter 26-Feb-14 3:28am

Read here - http://www.codeproject.com/Articles/43675/C-FileAssociation-Class

2 solutions

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phil.o · Answer 1 · 2014-02-25T21:29:00

I don't really know what happens, partially because you did not define 'failed'.

I would start by modifying these two lines:

C#

App.CreateSubKey("shell\\open\\command").SetValue("", "\"" + Application.ExecutablePath + "\" \"%1\"");
App.CreateSubKey("shell\\edit\\command").SetValue("", "\"" + Application.ExecutablePath + "\" \"%1\"");

This way, both the executable path and the command-line arguments will be enclosed between their own quotes.

Maciej Los · Answer 2 · 2014-02-25T21:49:00

Solution 2

Have a look here:
C#: Set File Type Association[^] - it is very interesting article ;)
and also StackOverflow KB: Associate File Extension with Application[^] - they suggest to use ClickOnce[^] and to not torture yourself writing custom functions ;)

Posted 25-Feb-14 21:49pm

Maciej Los

v2

Comments

osamaworx 26-Feb-14 5:54am

I appreciate your help Unfortunately Not working also

Maciej Los 26-Feb-14 9:31am

:laugh:
"Not working" is not informative at all.