China DOS Union

I want to convert a bat file to an exe format and encrypt it. I've tried several methods with unsatisfactory results. One is to use a batch process to turn the content inside into garbled code. Another is to directly convert it to an exe file, but the source file and code can be found in the temporary folder (%temp%). My goal is to convert the bat to exe but prevent others from easily translating and seeing the source code. Please, experts, give me some pointers on what tools or methods to use. Thanks!