主要的是要做三件工作: 打包文件,寫注冊表,注冊環境變量
說明:我的Oracle版本為9, 在2000 advanced server 上測試通過,可以正常創建數據庫連接
1.打包文件
目錄結果如下圖所示 
                                                                                            以下是我的打包程序中的文件目錄,
bin : 最重要的當然是bin目錄,在我的打包程序中,需要29個文件:
  --------------------
oci.dll
oraclient9.dll
oracommon9.dll
ORACORE9.DLL
orageneric9.dll
oraldapclnt9.dll
oran9.dll
ORANCDS9.DLL
orancrypt9.dll
oranhost9.dll
oranl9.dll
oranldap9.dll
ORANLS9.DLL
oranms.dll
oranmsp.dll
orannts9.dll
orannzsbb9.dll
oranoname9.dll
oranro9.dll
orantcp9.dll
orantns9.dll
ORAPLS9.DLL
ORASLAX9.DLL
ORASNLS9.DLL
ORASQL9.DLL
oratrace9.dll
ORAUNLS9.DLL
oravsn9.dll
orawtc9.dll
-------------------- 
network/admin : tnsnames.ora
      tnsnames.ora文件內容如下:(SERVICE_NAME = 服務器的連接)
   ORCL =
      (DESCRipTION =
        (ADDRESS_LIST =
          (ADDRESS = (PROTOCOL = TCP)(HOST = xxx.xxx.xxx.xxx)(PORT = 1521))
        )
        (CONNECT_DATA =
          (SERVICE_NAME = orcl)
        )
      )
ocommon/nls/ADMIN/DATA: 原oracle安裝目錄下所有文件
oracore/zoneinfo : timezone.dat
2.寫注冊表
HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE
"ORACLE_HOME" = "c:/oracle/ora90"
我發現從網上查到的 HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE/HOME0下的ORACLE_HOME值并不是必須的. 
3.注冊環境變量
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/session Manager/Environment
"path" += "D:/oracle/ora90/bin;" 
這里需要注重的是最好不用把path直接設成這個值,這樣會覆蓋掉系統原有的path,所以最好是在原有的path上添加.但是.net安裝程序中通過直接設置注冊表無法做到,這時候可以通過添加自定義安裝操作來在程序中完成. 
一個問題是在設置path后不會立即生效,所以安裝完程序后,系統找不到oracle的bin目錄,無法建立數據庫連接. 我現在的做法是把bin目錄下的29個文件都拷貝到系統的[System目錄](在.net的部署程序中,文件系統->非凡文件夾).有點惡毒阿,不過臨時湊活著吧 :) 誰找到解決的辦法記得告訴我阿 
示例代碼如下:
    
#region 檢查Oracle客戶端設置
        /// 
        /// 檢查Oracle客戶端設置
        /// 
        private void CheckOracleClient() {
            string[] keys = { "SYSTEM", "ControlSet001", "Control", "Session Manager", "Environment" };
            this.SetRegistryKey(Registry.LocalMachine, keys, "Path", @"c:/oracle/ora90/bin", true);
            keys = new string[] { "Software", "ORACLE"};
                         
            this.SetRegistryKey(Registry.LocalMachine, keys, "ORACLE_HOME", @"C:/oracle/ora90", false);
        }
        /// 
        /// 將指定的值寫入注冊表
        /// 
        /// <param name="startKey">初始的注冊表項</param>
        /// <param name="registryKeys">注冊表項數組,表示了指定值的路徑</param>
        /// <param name="valueName">值的名稱</param>
        /// <param name="value">要寫入的值</param>
        /// <param name="append">是否在當前值前添加,若為否,則覆蓋當前值</param>
        private void SetRegistryKey(RegistryKey startKey, string[] registryKeys, string valueName, string value, bool append) {
            
            RegistryKey rk = startKey;
            RegistryKey subKey = null;
            for (int i=0; i<registryKeys.GetLength(0); i++) {
                subKey = rk.OpenSubKey(registryKeys[i], true);
                if (subKey == null) {
                    subKey = rk.CreateSubKey(registryKeys[i]);
                }
                rk = subKey;
            } 
           
            if (append) {
                if (rk.GetValue(valueName) == null) {
                    rk.SetValue(valueName, value);
                } else {
                    string oldValue = rk.GetValue(valueName).ToString();
                    if (oldValue.IndexOf(value) > 0) {
                        rk.SetValue(valueName, value + ";" + oldValue);
                    }
                }
            } else {
                if (rk.GetValue(valueName) == null) {
                    rk.SetValue(valueName, value);
                    rk.Flush();
                }
            }
            if (subKey != null) {
                subKey.Close();
            }
            rk.Flush();
            rk.Close();
        }
        #endregion 檢查Oracle客戶端設置