This is similar to a question already posted on Redmine, but teh symptoms appear different.
As requested I ran the following command: > Go to apps/redmine/htdocs
Run the following command: bundle exec thin start -e production -p 3001 --prefix /redmine
The resulting Error message is: ruby.exe: illegal switch in RUBYOPT: -F <runtimeerror>
Does this point to a problem in a particular direction?