I have installed Yaws 1.88 on a Windows Vista system. And I want to edit yaws.conf and change the default port 8080. But I am prevented to save yaws.conf after edit. I have not started Yaws, and there is no process that has a lock on the file and I am logged in as Administrator. The file is not write protected, but the Yaws directory was, but if I change that, it is still not possible to edit yaws.conf.

Any suggestions on how I can edit yaws.conf?