How can I show the “Open with” file dialog?

by

Some reverse-engineering with ProcExp revealed a rundll32.exe command line that worked. Here’s a sample program that uses it:

using System;
using System.Diagnostics;
using System.IO;

class Program {
    static void Main(string[] args) {
        ShowOpenWithDialog(@"c:\temp\test.txt");
    }
    public static void ShowOpenWithDialog(string path) {
        var args = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), "shell32.dll");
        args += ",OpenAs_RunDLL " + path;
        Process.Start("rundll32.exe", args);
    }
}

Tested on Win7, I cannot guess how well this will work on other versions of Windows.

More Related Contents:

  1. Parse DateTime with time zone of form PST/CEST/UTC/etc
  2. Do you need to dispose of objects and set them to null?
  3. Why does .NET add an additional slash to the already existent slashes in a path?
  4. Query on HasMany reference
  5. Interfaces — What’s the point?
  6. C# winforms combobox dynamic autocomplete
  7. How to loop through IEnumerable in batches [duplicate]
  8. Does page reload ever cause post?
  9. System.Text.Json: How do I specify a custom name for an enum value?
  10. Does List guarantee insertion order?
  11. Get Live output from Process
  12. Wrap properties with CData Section – XML Serialization C#
  13. How to implement full row selecting in GridView without select button?
  14. Calculating point on a circle’s circumference from angle in C#?
  15. How do I customize ASP.Net Core model binding errors?
  16. MySQL Entity Framework Error – The specified store provider cannot be found in the configuration, or is not valid
  17. What’s better: DataSet or DataReader?
  18. Split an IEnumerable into fixed-sized chunks (return an IEnumerable where the inner sequences are of fixed length) [duplicate]
  19. SetWindowsHookEx in C#
  20. Convert string value to operator in C#
  21. AngularJS Web Api AntiForgeryToken CSRF
  22. Why does “\n” give a new line on Windows?
  23. for and while loop in c#
  24. How do I determine if a given date is the Nth weekday of the month?
  25. How to get CPU frequency in c#
  26. Why can’t I modify the loop variable in a foreach?
  27. Equivalent of UseUrls for .NET Core 3.1/IHostBuilder
  28. Drawing control to memory (Bitmap)
  29. Is it possible to scale Azure app services programmatically
  30. Get values from *.resx files in XAML

Leave a Comment