A reference to 'mydll.dll' could not be added.

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Hi everyone,

I want to add dll file into my project for RFID card reader. This card reader is third party. They given dll file for this device. However, I can't add dll file into my project. How can I solve this problem.

Error is

A reference to 'mydll.dll' could not be added.

step by step is

R-Click upon my project. Choose Add reference and Click Browse tap,

Choose path and click dll file. Finally, click ok. The following file occurs

A reference to 'mydll.dll' could not be added.

Help me plz...

This dll files is created by C++. However, I try to use with VB.net. I want to know it OK or not. Thank for all help :0

Posted 22-Apr-12 15:32pm

Developer87

Updated 23-Apr-12 21:34pm

v2

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4 solutions

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Lakamraju Raghuram · Answer 1 · 2012-04-22T16:00:00

Solution 2

For a .NET project/solution you add only a .NET assembly or COM dll as reference.
Check if your dll is CLR compatible. You try to open this in IL dissembler and check if all is right

Posted 22-Apr-12 16:00pm

Lakamraju Raghuram

Comments

Member 14892691 18-Jul-20 10:21am

How to add .NET assembly or COM dll as reference

Pandvi · Answer 2 · 2012-04-22T19:04:00

Solution 4

Hi, please check here.http://social.msdn.microsoft.com/Forums/pl-PL/Vsexpressvcs/thread/c194f361-afcb-47ac-81e9-8be60cbc25a0[^]

Posted 22-Apr-12 19:04pm

Pandvi

Developer87 · Answer 3 · 2012-04-26T15:29:00

Solution 5

Imports System
Imports System.Runtime.InteropServices
Imports System.Text

Module yourModuleName

Public Const parameterString  As String = "yourdll.dll"

 <dllimport(parameterstring> _
    Public Function HF_Port_Open() As Int32
    End Function

End Module

It's OK all.

Posted 26-Apr-12 15:29pm