C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace New_One
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_MouseDown(object sender, MouseEventArgs e)
        {
            Point p = new Point(e.X, e.Y);


            if (e.Button == MouseButtons.Right)
            {
                contextMenuStrip1.Show(button1, p);
            }

        }

        private void toolStripMenuItem1_Click(object sender, EventArgs e)
        {
            button1.Dispose();
            //I don't know what to enter here to delete the new button...
           
        }
       
        private void bt_add_Click(object sender, EventArgs e)
        {
            Button newButton = new Button();
            newButton.Name = tb_name.Name;
            newButton.Text = tb_name.Text;
            flowLayoutPanel1.Controls.Add(newButton);
            newButton.MouseDown += new MouseEventHandler(newButton_MouseDown);
           
        }

        void newButton_MouseDown(object sender, MouseEventArgs e)
        {
            
            Point p = new Point(e.X, e.Y);


            if (e.Button == MouseButtons.Right)
            {
                //I don't know what to enter here to right click next to
                //the new button...
                //I tried this  -->   contextMenuStrip1.Show(newbutton ,p);
                //but it can't work?!
            }

        }

        
        
        
    }
}

//C# code:

        [DllImport("UpdateDB.dll")]
        public static extern bool UpdateCommandsDB(String strDllPath, String strDBPath, ref string strError, bool bAppSideDB);

bRes = UpdateCommandsDB(m_sCommandDllPath, DBFilePath, ref sError, false);

//Second Dll code:
extern "C" __declspec(dllexport) BOOL UpdateCommandsDB(LPCTSTR strDllPath,LPCTSTR strDBPath, CString &strError, bool bAppSideDB)
{
	typedef bool(UPDATE_COMMANDS_DB_FUNC)(LPCTSTR, CString&, bool);
	bool bRes;
	AfxMessageBox(strDllPath);
	AfxMessageBox(strDBPath);
	HINSTANCE hDll = AfxLoadLibrary(strDllPath); //-this gets stuck
	//HINSTANCE hDll = AfxLoadLibraryEx(strDllPath,NULL,DONT_RESOLVE_DLL_REFERENCES);//Gets exception when trying to run the method
	AfxMessageBox(hDll?_T("hDll OK"):_T("hDll NOK"));
	UPDATE_COMMANDS_DB_FUNC *lpUpdateCommandsDB = (UPDATE_COMMANDS_DB_FUNC *)::GetProcAddress(hDll, "UpdateCommandsDB");
	AfxMessageBox(lpUpdateCommandsDB?_T("lpUpdateCommandsDB OK"):_T("lpUpdateCommandsDB NOK"));
	bRes = lpUpdateCommandsDB(strDBPath, strError, bAppSideDB);
	AfxMessageBox(bRes?_T("bRes OK"):_T("bRes NOK"));
	::AfxFreeLibrary(hDll);
	return bRes;
}

<log4net>
		<!-- The DebugFileAppender writes all messages to a log file-->
		<appender name="GeneralAppender" type="log4net.Appender.FileAppender">
			<!-->the file where to write the events<-->
			<file value="GeneralLog.dat" />
			<!-->the lowest level a message must reach in order to get written in the log file<-->
			<threshold value="WARN" />
			<!-->a value indicating that every message is appended to the log file<-->
			<appendToFile value="true" />
			<maximumFileSize value="100KB"/>
			<rollingStyle value="Size"/>
			<!-->the message layout<-->
			<layout type="log4net.Layout.PatternLayout">
				<param name="ConversionPattern" value="[%d] - %m%n" />
			</layout>
		</appender>
		<root>
			<!-- add other appenders here and the log messages will be sent to every listed appender -->
			<appender-ref ref="GeneralAppender" />
		</root>
	</log4net>

FileAppender generalLogAppender = new FileAppender();
//Initialize the properties of the appender
generalLogAppender.Name = generalLogFileName;
generalLogAppender.File = "Log+"+ fileName + ".dat";
generalLogAppender.AppendToFile = true;
generalLogAppender.Threshold = Level.Warn;
PatternLayout layout2 = new PatternLayout();
layout2.ConversionPattern = "[%d] - %m%n";
layout2.ActivateOptions();
generalLogAppender.ActivateOptions();
BasicConfigurator.Configure(generalLogAppender);