-----Original Message----- From: Damien Miller [mailto:djm@xxxxxxxxxxx] said: >This effectively limits select to a maximum of FD_SETSIZE descriptors on Windows. I don't think that this limitiation exists on other platforms. --------------------------- Note the bit where it says: #ifndef FD_SETSIZE #define FD_SETSIZE 64 #endif /* FD_SETSIZE */ So to make FD_SETSIZE any arbitrarily large value up to whatever your system can handle, you just redefine FD_SETSIZE before you #include winsock.h.