Please be aware that these steps do not resolve any issue
with Flash, but are a configuration step for Microsoft Windows 2003
and Microsoft IIS Server 6.0. Any difficulties in executing these
instructions or any errors that may arise from modifying your
system settings should be addressed to Microsoft. For more details,
please refer to your IIS documentation.
On the Windows 2003 server, open the Internet Information
Expand the Local Computer Server.
Right-click the local computer server and select Properties.
Select the MIME Types tab.
Click New and enter the following information:
Associated Extension box: .FLV
MIME Type box:flv-application/octet-stream
Restart the World Wide Web Publishing service.