Number of User Limit in Crystal Reports 2013?

Hello,

I'm studying a solution for porting of 180 reports developed in CR9, and displayed in legacy ASP pages, in Windows 2000 server.

New solution is:

Windows 2008 Server 64bit, where a ASP.NET web site is deployed, and also CR for Visual Studio 2010 RunTime libraries (both 32 and 64 bit)

Crystal Reports 2013 (for report development)

Crystal Reports for Visual Studio 2010 (for integration in ASP.NET pages using CrystalReportViewer)

The question is: how many users in the same time can be managed by CR runtime libraries? Finally: there is a user limit? And if response is yes, there is a solution (maybe CR server version) that allows to increase user concurrency?

Thank you in advance

Guglielmo