FTP uploads using Windows Explorer and Internet Explorer are slower than FTP uploads using command prompt

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Article ID: 2388131 - View products that this article applies to.
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SUMMARY

FTP uploads using Windows Explorer and Internet Explorer are slower than FTP uploads with the command prompt. This is because Windows Explorer and Internet Explorer have a default send buffer size of 4096 bytes. Due to this default size, FTP uploads initiated from Windows Explorer and Internet Explorer will be slower when compared with command prompt. 

Note: This buffer size is not configurable in current versions of Windows.

MORE INFORMATION

ftp.exe with command prompt does have a configurable send buffer size. To specify a custom buffer size in the command prompt, type in:

ftp.exe -x:buffersize in bytes (for example: 8192)

You will then see the following message:

SendSocketBuffer: 8192 Bytes

The send buffer size is now set for this session and you can then proceed with the FTP connection.



Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

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Article ID: 2388131 - Last Review: September 4, 2010 - Revision: 1.0
APPLIES TO
  • Windows 7 Starter
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Enterprise
  • Windows 7 Ultimate
Keywords: 
KB2388131

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