Adobe Flash formatted ColdFusion forms do not render in a browser on IIS 5 or IIS 5.1
Issue
When using ColdFusion MX 7 with IIS 5 or IIS 5.1, ColdFusion forms that specify flash for the format (cfform ) will not render in a browser if "Check that file exists" is enabled in IIS.
Reason
The "Check that file exists" property instructs IIS to check that the file in question exists on disk before it is served to the client. In the case of ColdFusion MX Flash forms, the file is generated dynamically at runtime and maintained in memory and therefore never exists in the file system or on disk.
Solution
- Open the IIS Administrator.
- Right-click onthe website in question and select Properties.
- Select the Home Directory tab.
- Click the Configuration button.
- Select the .cfswf extension and click Edit.
- Make sure that "Check that file exists" is not checked. Do not change the "Check that file exists" property for any of the other ColdFusion MX extensions, such as .cfm, .cfc, etc.
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