Documentation note for Win32 glue between BIO layer and compiler run-time.

=pod

=head1 NAME

OPENSSL_Applink

=head1 SYNOPSIS

 __declspec(dllexport) void **OPENSSL_Applink();

=head1 DESCRIPTION

OPENSSL_Applink is application-side interface which provides a glue

between OpenSSL BIO layer and Win32 compiler run-time environment.

Even though it appears at application side, it's essentially OpenSSL

private interface. For this reason application developers are not

expected to implement it, but to compile provided module with

compiler of their choice and link it into the target application.

The referred module is available as <openssl>/ms/applink.c.

=cut