.Sp
The default is "win32".
.TP
+\fBMONO_THREAPOOL\fR
+This environment variable can be used to choose the implementation of
+the ThreadPool used at runtime. By default this uses the long term
+Mono threadpool implementation. But a new "microsoft" value switches
+the threadpool implementation to Microsoft's CoreCLR/ReferenceSource implementation.
+.TP
\fBMONO_TLS_SESSION_CACHE_TIMEOUT\fR
The time, in seconds, that the SSL/TLS session cache will keep it's entry to
avoid a new negotiation between the client and a server. Negotiation are very