When attempting to upload a small (< 5MB) or large ( > 100MB) I am recieving the error "Target Length is bigger than file size!"  when the upload is between 20-30% complete.   The error occurs everytime and is consistent across different versions of Internet Explorer.   We are using a web farm of eight servers running IIS 7.0.  

The web.config is setup with the following settings

    <add key="CuteWebUI.AjaxUploader.TempDirectory" value="\\filec.krollfactualdata.com\apollofileshare\" /> 

      <!-- this appears under the httpHandlers and system.webserver.modules sections -->

      <add name="CuteWebUI.UploadModule" type="CuteWebUI.UploadModule,CuteWebUI.AjaxUploader"/>

The usage for the ajaxuploader control is part of ASP.NET server control (ascx) and declared using the following.  

      <CuteWebUI:UploadAttachments runat="server"

                  ManualStartUpload="true"

                  ID="Uploader1"

                  ShowTableHeader="True"

                  CancelAllMsg="Cancel All"

                  CancelButtonID="CancelButton"

                  InsertButtonID="BrowseButton"

                  OnFileUploaded="Uploader_FileUploaded"

                  FileTooLargeMsg="The File You Are Attempting Upload Is To Large. Please Split The File And Try Again."

                  UploadProcessingMsg="Your Upload Is In Process."

                  UploadingMsg="Your Upload Is In Process."

                  UploadCursor="Auto"

                  ProgressBarStyle="Continuous"

                  UploadTypePriority="SilverLight, HTML5, IFrame, Flash, Auto"

            >

            </CuteWebUI:UploadAttachments>

Please advise as to what we need to change in order to get the file upload functionality working.  

Thank You,

ShawnJ