Sharepoint - Allow use "Open with Windows Explorer" download large file than 50mb

當你使用「以Windows檔案總管開啟」(Open with Windows Explorer)方法來下載SharePoint 2007 or 2010上面的檔案時，若有單一檔案超過50MB的話，就會出現下載失敗的訊息，失敗訊息請詳圖片。
WIN 7會出現:【錯誤0x800700DF:檔案大小超過允許的限制，無法儲存。】or【Error 0x800700DF:The file size exceeds the limit allowed and cannot be saved.】
WIN XP會出現:【無法複製:無法讀取來源檔案或磁碟。】or【Cannot Copy:Cannot read from the source file or disk.】
若想要下載超過50MB的檔案，就必須更改registry的預設值。

Solution:
1.Open regedit
2.Move to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters
3.Double Click FileSizeLimitInBytes on the right panel and click Modify
4.Click on Decimal
5.Enter a new value 4294967295 (bytes) and click OK
6.Close regedit and restart the computer
7.The last,you can download reach 4GB file (4294967295 bytes = 3.9999GB)