Hi,

> TCPWINDOWSIZE should be set to 63 on Win2k.

No, that's the recommendation for WinNT4. The maximum
value for Win2k is 64 (see the MS knowledge base article
Q224829).
After we set the values for TCPWINDOWSIZE to 64 and the
TCPBUFFSIZE to 512 the throughput of our Win2k clients
has been increased dramatically from 200 kB/s to 4-5 MB/s.

Regards,
Dirk