Supported Transfer Modes for FTP in IIS (257337)


The information in this article applies to:

  • Microsoft Internet Information Server 1.0
  • Microsoft Internet Information Server 2.0
  • Microsoft Internet Information Server 3.0
  • Microsoft Internet Information Server 4.0
  • Microsoft Internet Information Services 5.0
  • Microsoft Internet Information Services version 6.0
This article was previously published under Q257337
We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx

SUMMARY

According to RFC 959, there are three transfer modes in the File Transfer Protocol. The following codes are assigned for toggling the transfer modes:

S - Stream
B - Block
C - Compressed

The default transfer mode is Stream. Internet Information Services (IIS) only supports Stream mode transfers in its current and earlier implementations.

MORE INFORMATION

For more information on RFC 959, visit see the following Web site:

http://www.rfc-editor.org/rfc/rfc959.txt

Modification Type:MinorLast Reviewed:6/23/2005
Keywords:kbinfo KB257337
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