Some years ago, I use Crystal Reports XI.5, I had problem when I generated long reports (> 25 pages) with the viewer embedded in a ASP .Net web page. If the report was short, there wasn't a problem.
My solution is to use Crystal 9 with the Java component using ASP 3 (!!!!) but there are security warning with the Java applet and it's time to upgrade it.
Does someone had the same problem with CR XI.5 ? Are the last version (CR 2011) reliable ?
(Note : I can't buy CR Web server)