How can I programmatically call the windows dialog window: "Select an app to open this" which is used to set default programs?

Question

Hi MP_1_950 0

Hello,

Select

I am looking for some example in c# or vb.

Any assistance would be appreciated.

Thank you in advance.

Hi MP_1_950 0 Reputation points

2024-12-06T14:21:10.9+00:00

Thank you for your response. I am not able to make registry entries or utilize 32-bit shell function.
Castorix31 90,686 Reputation points

2024-12-06T15:18:09.6133333+00:00

(comment under the answer...)

I don't see why you cannot use .NET registry classes or Win32 APIs or interfaces ?
Jiachen Li-MSFT 34,221 Reputation points Microsoft External Staff

2025-01-30T08:58:35.5933333+00:00

Hi @Hi MP_1_950

Whether you want your app to appear in the list or to call this dialog through your app?

1 answer

Hi MP_1_950 0 Reputation points

2024-12-06T14:21:10.9+00:00

Thank you for your response. I am not able to make registry entries or utilize 32-bit shell function.
Castorix31 90,686 Reputation points

2024-12-06T15:18:09.6133333+00:00

(comment under the answer...)

I don't see why you cannot use .NET registry classes or Win32 APIs or interfaces ?
Jiachen Li-MSFT 34,221 Reputation points Microsoft External Staff

2025-01-30T08:58:35.5933333+00:00

Hi @Hi MP_1_950

Whether you want your app to appear in the list or to call this dialog through your app?

Answer 1

Castorix31 90,686