Maximum simultaneous TCP connections?

I was wondering if anyone has any experience with the maximum number of open TCP connections a Windows server can have? I know there are some differences between Windows versions, but I’m looking for hard numbers (Windows 2003 R2 or 2008).

No huge amounts of data going around, the connections would be relatively idle. Anyone know? :slight_smile:

On 2003 this is going to be about the best reference:
Transmission Control Protocol/Internet Protocol (TCP/IP) | Microsoft Learn