C# DSN class to Modify or query ODBC sources

DSN.cs

using System;
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.Text;

public enum ODBC_ACTION : int
{
    ADD_DSN = 1,
    CONFIG_DSN,
    REMOVE_DSN,
    ADD_SYS_DSN,
    CONFIG_SYS_DSN,
    REMOVE_SYS_DSN
}

public enum CONFIG_MODE : int
{
    ODBC_BOTH_DSN = 0,
    ODBC_USER_DSN = 1,
    ODBC_SYSTEM_DSN = 2,
}

public static class DSN
{
    public static void Remove(string provider, string attributes, bool sysdsn = false)
    {
        bool ret = ConfigureDSN(sysdsn ? ODBC_ACTION.REMOVE_SYS_DSN : ODBC_ACTION.REMOVE_DSN, provider, attributes);
        if (!ret)
            throw new Win32Exception(Marshal.GetLastWin32Error().ToString());
    }

    public static void Add(string provider, string attributes, bool sysdsn = false)
    {
        bool ret = ConfigureDSN(sysdsn ? ODBC_ACTION.ADD_SYS_DSN : ODBC_ACTION.ADD_DSN, provider, attributes);
        if (!ret)
            throw new Win32Exception(Marshal.GetLastWin32Error().ToString());
    }

    public static bool Exists(string provider, string dsnName, bool sysdsn = false, string attributes = "")
    {
        return ConfigureDSN(sysdsn ? ODBC_ACTION.CONFIG_SYS_DSN : ODBC_ACTION.CONFIG_DSN, provider, string.Concat("DSN=", dsnName, "\0", attributes));
    }

    public static bool ConfigureDSN(ODBC_ACTION fRequest, string lpszDriver, string lpszAttributes)
    {
        return SQLConfigDataSource(IntPtr.Zero, (int)fRequest, lpszDriver, lpszAttributes);
    }

    public static string CreateAttributesFromPrivateProfileString(string input)
    {
        return input.Replace(';', '\0');
    }

    public static string GetConfig(string dsnName, CONFIG_MODE configMode = CONFIG_MODE.ODBC_BOTH_DSN)
    {
        bool success = SQLSetConfigMode(configMode);
        if (!success)
            throw new Win32Exception(Marshal.GetLastWin32Error());
        char[] retBuf = new char[8192];
        int length = SQLGetPrivateProfileString(dsnName, null, "", retBuf, retBuf.Length, "odbc.ini");
        string keyStr = new string(retBuf, 0, length);
        string[] keys = keyStr.Split(new string[] { "\0" }, StringSplitOptions.RemoveEmptyEntries);

        StringBuilder sb = new StringBuilder();
        foreach (string key in keys)
        {
            char[] retBuf2 = new char[8192];
            int l2 = SQLGetPrivateProfileString(dsnName, key, "", retBuf2, retBuf2.Length, "odbc.ini");

            sb.Append(key);
            sb.Append(" = ");
            sb.Append(new string(retBuf2, 0, l2));
            sb.Append(";");
        }
        return sb.ToString();
    }

    /// <summary>
    /// Win32 API Imports
    /// </summary>
    [DllImport("ODBCCP32.dll")]
    private static extern bool SQLConfigDataSource(IntPtr hwndParent, int fRequest, string lpszDriver, string lpszAttributes);

    [DllImport("ODBCCP32.dll", SetLastError = true)]
    static extern int SQLGetPrivateProfileString(string lpszSection, string lpszEntry, string lpszDefault, [Out] char[] retBuffer, int cbRetBuffer, string lpszFileName);

    [DllImport("ODBCCP32.dll", SetLastError = true)]
    static extern bool SQLSetConfigMode(CONFIG_MODE configMode);
}

test.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        /* NOTE FOR 32 BIT SOURCES: YOU NEED TO COMPILE WITH x86 ARCHITECTURE. ANY CPU WILL NOT WORK! */

        //Check if DSN exists
        bool b = DSN.Exists("SQL Server", "test");

        //Get DSN details
        string dsnDetails = DSN.GetConfig("test");
        
            
        //Add DSN
        DSN.Add("SQL Server", "DSN=some name");

        //Delete DSN
        DSN.Add("SQL Server", "DSN=some name");


        //Backup and restore:
        bool exists = DSN.Exists("SQL Server", "test");
        if (exists) {
            string data = DSN.GetConfig("test");
            DSN.Remove("SQL Server", "DSN=test");

            DSN.Add("SQL Server", DSN.CreateAttributesFromPrivateProfileString("DSN=test;" + data));
        }
    }
}