Using Dll that require .Net4.0 on app built with .Net2.0

Question

0.00/5 (No votes)

See more:

Hi

I want to know please, If there is any solution that allow me to Use a DLL that require .Net4.0 or higher to be used with application that i have to made with .Net2.0 .

Any solution Please.
thank's

Posted 28-Jan-16 23:36pm

darkvampire

Updated 28-Jan-16 23:38pm

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2016-01-28T23:47:00

Solution 1

No. The problem is that .NET apps specify - and check - the .NET version they need at load time, and this means that if you referenced a later version assembly it wouldn't have the right framework available when you tried to run it.
That's why VS complains when you try to add a later assembly as a reference.
Your only option is to raise the level of your main app to equal or above that of the DLL, or recompile the DLL to use a lower .NET version.

Posted 28-Jan-16 23:47pm

OriginalGriff

Comments

BillWoodruff 29-Jan-16 6:13am

Griff, see what you think of this:

https://code.msdn.microsoft.com/windowsdesktop/Using-a-NET-4-Based-DLL-bb141db3

Looks like nightmare code to me.

OriginalGriff 29-Jan-16 6:22am

Brrr...hacky or what? Just because it physically can be done doesn't mean it should! :laugh:
Not what I'd want to see in any production code. and a lot more work to implement and maintain than upping the Assembly version in the first place!

koolprasad2003 · Answer 2 · 2016-01-29T02:06:00

Solution 2

Answer is NO.
.Net frameworks (v2.0 or higher) are not forward compatible.

surprisingly, I got following link. which you can look into it
How To Use a .NET 4 Based DLL From .NET 2 Based Application? | Arik Poznanski's Blog[^]

Posted 29-Jan-16 2:06am

koolprasad2003

Comments

Richard Deeming 29-Jan-16 11:31am

That's the same article that Bill linked to in the comments to solution 1.

koolprasad2003 29-Jan-16 22:55pm

ohh... yes. I missed that.