How to prevent application from crashing when .dll is missing?

Question

I want my program in case of missing .dll file to notify user about this fact instead of just crashing with FileNotFoundException reffering to this .dll.

This library is included to the project via refference.

Exception is thrown even before any of my code is executed so I can't hadle it.

It's not possible, you should add dll before compiling the program. — Abdul Qayyum, Jan 30 '18 at 09:10
It's already compiled. I just want to handle the case when program is started but required dll is missing. — InfernumDeus, Jan 30 '18 at 09:15
If the project dll is a direct reference, then how does it compile? — Wheels73, Jan 30 '18 at 09:19

TheGeneral · Accepted Answer · 2018-01-30T09:30:20.090

1

Your only 2 options are (as far as i know)

You need to load the dll dynamically and reflect what you need
Write a loader app to check for the dll before starting your app

This question may get you started on option one

Loading DLLs at runtime in C#

However : i guess its just easier to make sure they have the dll or include it in the build

edited Jan 30 '18 at 09:30

answered Jan 30 '18 at 09:20

TheGeneral

79,002
9
103
141

score 0 · Answer 2 · answered Jan 30 '18 at 09:24

0

During application start up, you can register app domain for any unhandled exception as :

AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;

Your handler should take care of showing appropriate message to user.

answered Jan 30 '18 at 09:24

rahulaga-msft

3,964
6
26
44

How to prevent application from crashing when .dll is missing?

2 Answers2