Actually the only three letters you need to survive on the Woodman Forum are "FAQ," preceeded by "Read the."

You will notice the
BIG RED LETTERS at the top of the Forums also suggesting you search first.
Also, from your question, I do not believe what you are seeking is really related to "inline patching." As I understand your question, you are looking for a patcher for a program you have discovered how to patch so it works the way you want, but you only want to "distribute" the crack and not the full "patched exe."
"Inline patching" generally refers to patching the exe by redirecting the running code to another location in the file, having it run your own code, and then jumping back to where you were, or some other point you want to be. Part of the process is finding a place to put your "new" code and what it is supposed to changes, but this second part is what one does in making any crack.
A "patcher," which you described would be a small exe on its own, which when executed would take the original exe, find certain offsets and change the code to whatever you want it to be.
In the first instance, you would be distributing the full, patched exe. In the second instance, you would be distributing a small patch that, itself, fixes the original exe.
Of course, you can "search" for "inline patching" here or there and find out all this yourself.
Regards,