Don't know of any Windows programs that would do this, but the patch file isn't that difficult to navigate. Here's some light reading on the file:
How to patch a file in LinuxHere's the quick down and dirty information:
--- The original file to be patched (modified) [ may have version information ]
+++ The new file name after patching [ typically the same name ]
@@ Designates a "chunk" to be patched (helps in locating proper placement in file)
- Removal of that specific line
+ Addition of that specific line
***Note: An empty column (i.e. no + or - sign) means that the line doesn't change***
I'm working on something to write out steps for patch files so people can use them on non-linux systems. So far, I've got some of it working, not all of it. If I get it working (as I want) I'll upload it for those to use.