The post you replied to is 6 years old. I'm not 100% clear on what you claim "doesn't work" but I just installed Tk via cpanp on Strawberry Perl v5.20.3 and it worked fine:
>cpanm Tk
--> Working on Tk
Fetching http://www.cpan.org/authors/id/S/SR/SREZIC/Tk-804.033.tar.gz
+... OK
Configuring Tk-804.033 ... OK
Building and testing Tk-804.033 ... OK
Successfully installed Tk-804.033
1 distribution installed
I've been installing Tk on Strawberry for many years and don't recall ever running into a problem.