I can't get this problem resolved. dsmerror.log shows the following error
every hour:
08/25/99   07:04:09 TcpOpen(): Warning. The TCP window size defined to ADSM
is not supported by your system.
 It will be to set default size - 33232

I've tried to make entries to the dsm.sys file setting the tcpwindowsize to
values ranging from 1 to 2048 with no luck.

The client is a Sun Solaris 2.7 (dsmc v3.1.07) to an MVS Server (3.1 level
2.20).