Please show us the lines before that as well, otherwise we cannot help you.

Finally, I found I needed to open firewall acl_in TCP for 993 for IMAP.

I am running into the same issue with Net::SSLeay - CryptSSLeary worked fine with the steps mentioned before.
Here is the relevant log:

cpan> look Net::SSLeay
Running look for module 'Net::SSLeay'

Trying to open a subshell in the build directory...
Working directory is C:\strawberry\cpan\build\Net-SSLeay-1.35-6U3ak7
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. Alle Rechte vorbehalten.

C:\strawberry\cpan\build\Net-SSLeay-1.35-6U3ak7>perl MakeFile.pl
Cannot determine perl version info from lib/Net/SSLeay.pm
Cannot determine license info from lib/Net/SSLeay.pm
*** Found OpenSSL-0.9.8l installed in C:\OpenSSL
*** Be sure to use the same compiler and options to compile your OpenS
+SL, perl,
    and Net::SSLeay. Mixing and matching compilers is not supported.
Do you want to run external tests?
These tests *will* *fail* if you do not have network connectivity. [n]
+ y
Note (probably harmless): No library found for -llibeay32MD
Note (probably harmless): No library found for -lssleay32MD
Note (probably harmless): No library found for -llibeay32
Note (probably harmless): No library found for -lssleay32
Note (probably harmless): No library found for -llibssl32
Writing Makefile for Net::SSLeay
[download]

http://cpansearch.perl.org/src/FLORA/Net-SSLeay-1.35/README.Win32