照着下面那段文字翻译了一下，可能有错误，请参照参考。
Windows使用Local和LocalLow文件夹存放那些不随用户而漫游的程序数据。通常这些数据要不是针对特定设备的，要不就是太大不能漫游。
AppData\Local(Windows Vista)等同于Documents and Settings\username\Local Settings\Application Data(Windows XP)
Windows使用Roaming文件夹来存放特殊的程序数据，例如自定义词典，而它是不受设备限制的且会随着用户的配置文件而漫游的。
AppData\Roaming(Windows Vista)等同于Documents and Settings\username\Application Data(Windows XP)
漫游配置文件：
漫游配置文件包含用户的工作环境，其中包含桌面项目和设置。
这些环境的某些示例是指屏幕颜色、鼠标设置、窗口大小和位置以及网络和打印机连接。 假如服务器可以使用，只要用户登录，漫游配置文件就可用。
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Windows uses the Local and LocalLow folders for application data that does not roam with the user. Usually this data is either machine specific or too large to roam. The AppData\Local folder in Windows Vista is the same as the Documents and Settings\username\Local Settings\Application Data folder in Windows XP.
Windows uses the Roaming folder for application specific data, such as custom dictionaries, which are machine independent and should roam with the user profile. The AppData\Roaming folder in Windows Vista is the same as the Documents and Settings\username\Application Data folder in Windows XP.
