How to used it?

[GUANCAIBAN]

Hi,nirhaas
I build the project,and it generate a main.exe,and then I used this by
main.exe xor.exe
then it generate a file named "xor.exe.packed",I find it is a execute,so i run it,but error is occured:
failed writing unpacked file: open xor.exe: The process cannot access the file because it is being used by another process.

how can I do? And i want to know why it become so big after packer.if it like the upx,it should be smaller,right?
Maybe I don't understand the readme.
Please help me.Thanks

[homelanmder]

i have found that if you exec the packerfile,you will get a new exe file,then the new file is be compressed