I've been trying out Patch Maker 1.3, and I think it's a great little program. Probably the best of its kind!
But, there seems to be an issue with it. If you attempt to patch files on a drive partition that has free disk space in the terabyte range, the patcher fails with a "Not enough disk space" error. Patch Maker doesn't seem to handle free disk space calculations correctly in that situation.
Also, I was wondering if a feature could be added? It would be nice to have an option where you can lock/disable the controls that allow users to change the directory that the patcher wants to use. I've created a patcher that reads the registry for the install path of an application, to find out what directory to patch. I'd like to prevent anyone from changing the directory, so the patch doesn't fail because the user either accidentally or deliberately changes it.