http://www.cadence.com/Community/blogs/sd/archive/2009/05/15/systemc-debug-a-summary-of-summary-probes.aspxSystemC goes well beyond generic C and C++ to provide a number of semantic constructs that are essential for system-level modeling, design and verification. Among the most powerful of these are threading and concurrency. Using threading is required inenCommunityServer 2007.1 (Build: 20917.1142)