What is AL.EXE and RESGEN.EXE

Resgen.exe performs conversion of .txt / .restext files to .resources / .resx files and vice-versa. These (.resources/.resx) files can be embedded in a runtime binary executable or compiled into satellite assemblies.

Assembly Linker (Al.exe) generates a file that has an assembly manifest from modules or resource files. A module does not have an assembly manifest