This is lzham ALL_IN_ONE.
The dll is injected inside so all comes into one exe.
its the same version you use so no worries, as soon as i compile the new version i will sent it over if you want it
Edit 1: Also use this 7z.exe it has dll injected inside as well and its alpha version,
The one you have it 15.10 Beta, whereas this one is 15.12 alpha and its injected as well :P