China DOS Union

As the title says
Now there is an.exe executable file. May I ask if the source code can be obtained through the executable file

If your exe is converted from a bat, it's okay.

asm-> obj -> com / exe
What is the nature of a bat file?
To be more direct, can you obtain the corresponding source code from an EXE file by reading someone else's EXE file (when it is not encrypted)?

asm-> obj -> com / exe
What is the nature of a bat file?
More directly, can we obtain the corresponding source code from a read exe file (when it is not encrypted)?

Disassembly seems possible

This seems to have little to do with DOS? It is suggested to go to the Kanxue forum to consult professionals.
The original poster came to the China DOS Union and didn't even know what a bat file is. Surprising...

Some bat to exe packagings are somewhat similar to the self-extracting releases of WinRAR. You can disable the NTFS permission that prohibits the current user from accessing cmd.exe to prevent the bat from executing, and then go to the pre - released directory to search. VBS seems to be wscript.exe. I once tried to package cmd together with the corresponding bat to avoid this problem, but later I found that the cmd of 2003 can't run on XP, so I didn't try whether the result is okay. This kind of problem really needs attention on public computers. Many people even use hacked cmd to replace the system, and sometimes modifying the path variable will lead to dll loading errors when running taskkill.

Disassembly can show basic assembly statements, but cannot show advanced assembly language technologies such as macro assembly, repeated assembly, conditional assembly, data structures, data records, etc. We need to rely on them to build complex assembly programs. Otherwise, using DEBUG to build programs of hundreds of KB or even several megabytes or gigabytes, which require arrays and records, the human brain cannot remember such complex structures and such a huge amount of data!!!

Just received a task. I don't have much assembly language foundation. The purpose is to get the source code through the exe file. If the assembly program is too large, the readability of the disassembled program is not strong either.

There are many experts in reverse engineering on the Kanxue Forum. The help that CN-DOS can provide you is probably not much.

Thanks to the moderator's answer,

.bat is a type of executable command in Windows. If it's.exe, it's a file generated by calling from user-defined functions and function libraries, and it requires an interpreter.