The URL to the topic is missing the server name:
Should be: URL: http://xxx/codestriker/codestriker.pl?action=view&topic=1725463
This also works fine for me - I can only guess it is some apache specific config which might be stuffing this up. Can you email me your apache and codestriker.conf file?
File Added: REVIEW Topic Created with 1.9.6.txt
Mail sent from 1.9.6
Mail sent from 1.9.7-rc1
File Added: REVIEW Topic Created with 1.9.7-rc1.txt
We're using MS IIS with the perl version described in the installation manual.
File Added: codestriker.conf
Can you try using 1.9.7-rc2 which has just been released?
I also wonder if using Perl 5.8 or 5.10 might be worth a try. I don't have IIS handy, so I can't test this myself I am afraid.