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string str = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;  
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string str = System.Environment.CurrentDirectory;  
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string str = System.AppDomain.CurrentDomain.BaseDirectory;  
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string str = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;  
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string str = System.Windows.Forms.Application.StartupPath;  
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string str = System.Windows.Forms.Application.ExecutablePath;  
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string str = System.IO.Directory.GetCurrentDirectory();  
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string str = this.GetType().Assembly.Location;
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using System;
using System.Data;
using System.Data.OleDb;
namespace AccessDb
{
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public class AccessDbClass
{
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