<p>There is an existing application based on asp-pages running on IIS 6.0. In this application exists an asp routine which controls if an user has the permissions to download this file. If the user has the permission it will start the download. Else it will display an error message. The routine worked properly for a long eriod of time.</p><p> Now files have been added which were larger. These new files can't be downloaded. The download starts and but does not finish. It aborts while downloading.</p><p> It has to be possible to download files regardless of the filesize.</p>