if you need to convert a registry file (.reg) to the batch file (.bat) just use RegToBat , it is Portable (just 308kb) and very simple to use , just run RegToBat and then Drag and drop a .reg file (easiest way) or use the select Button. Convert a registry file (.reg) to the batch file (.bat).

The license of this software is Freeware, you can free download and free use this file converter software.