获取软件在注册表的安装信息

         /// <summary>
        /// 获取软件在注册表的安装信息
        /// 软件都会在这个注册表下填写自己的安装信息
        /// HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths
        /// </summary>
        /// <param name="softName">软件名称</param>
        /// <param name="path">返回软件安装路径</param>
        /// <returns>是否找到注册表的安装路径</returns>
        public static bool TryGetSoftwarePath(string softName, out string path)
        {
            string strPathResult = string.Empty;
            string strKeyName = "";     //"(Default)" key, which contains the intalled path
            object objResult = null;

            Microsoft.Win32.RegistryValueKind regValueKind;
            Microsoft.Win32.RegistryKey regKey = null;
            Microsoft.Win32.RegistryKey regSubKey = null;

            try
            {
                //Read the key
                regKey = Microsoft.Win32.Registry.LocalMachine;
                regSubKey = regKey.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\" + softName.ToString() + ".exe", false);

                //Read the path
                objResult = regSubKey.GetValue(strKeyName);
                regValueKind = regSubKey.GetValueKind(strKeyName);

                //Set the path
                if (regValueKind == Microsoft.Win32.RegistryValueKind.String)
                {
                    strPathResult = objResult.ToString();
                }
            }
            catch (System.Security.SecurityException ex)
            {
                throw new System.Security.SecurityException("You have no right to read the registry!", ex);
            }
            catch (Exception ex)
            {
                throw new Exception("Reading registry error!", ex);
            }
            finally
            {

                if (regKey != null)
                {
                    regKey.Close();
                    regKey = null;
                }

                if (regSubKey != null)
                {
                    regSubKey.Close();
                    regSubKey = null;
                }
            }

            if (strPathResult != string.Empty)
            {
                //Found
                path = strPathResult;
                return true;
            }
            else
            {
                //Not found
                path = null;
                return false;
            }
        }