X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/b8e4502352897a4ab789a9706ca6f04beea6ce5d..c683b25ae5c61a90fb78da577fd8d1b92cbe8fd6:/doc/config.but

diff --git a/doc/config.but b/doc/config.but
index 63aac0ad..29259572 100644
--- a/doc/config.but
+++ b/doc/config.but
@@ -2975,8 +2975,10 @@ The \q{Serial line to connect to} box allows you to choose which
 serial line you want PuTTY to talk to, if your computer has more
 than one serial port.
 
-On Windows, the first serial line is called \cw{COM1}, and if there
-is a second it is called \cw{COM2}, and so on.
+On Windows, the first serial line is called \i\cw{COM1}, and if there
+is a second it is called \cw{COM2}, and so on. A serial line with
+a name other than \cw{COM1} to \cw{COM9} can be specified by prefixing
+its name with \cw{\\\\.\\} - for instance, \cw{\\\\.\\COM10}.
 
 This configuration setting is also visible on the Session panel,
 where it replaces the \q{Host Name} box (see \k{config-hostname}) if