iHacker gives the following statement on this RecBoot 1.1:
If you wish to enter Recovery Mode, however, you will need to download and place iTunesMobileDevice.dll in the RecBoot folder. I cannot provide this due to legal reasons. I could have made RecBoot point to the DLL from the registry, but I’m not going to, it’s just a quick open source thing I created for the community that isn’t a big deal, feel free to do whatever you want with it, use the batch files and everything else in the folder.
DOWNLOAD: RecBoot 1.1