By default RichTextEditor automatically detect the MIME type of the files you upload, and rejects the file if the file-extension does not match the mime type ("The file is corrupt or has an incorrect extension"). You can turn it off by setting this property to "false".

Example

<%  
    Dim rte  
    Set rte=new RichTextEditor   
    rte.Text="Type here"
    rte.EnableMimetypeChecking=false  
    rte.ID="Editor1"    
    rte.MvcInit()
    Response.Write(rte.GetString())  
    // use Request.Form("Editor1")to retrieve the data  
%>

See Also

Editor Class | RTE Namespace

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