MSIL Disassembler is described as ' The MSIL Disassembler is a companion tool to the MSIL Assembler (Ilasm.exe). Ildasm.exe takes a portable executable (PE) file that contains Microsoft intermediate language (MSIL) code and creates a text file suitable as input to Ilasm.exe' and is an app in the Development category. There are five alternatives to MSIL Disassembler for Windows, .NET Framework, Mac and Linux. The best alternative is ILSpy, which is both free and Open Source. Other great apps like MSIL Disassembler are dotPeek (Free), .NET Reflector (Paid), CFR (Free, Open Source) and PEBrowse64 Professional (Free Personal).
PEBrowse64 Professional is a static-analysis tool and disassembler for Win64 executables and Microsoft .NET assemblies produced according to the Portable Executable specifications published by Microsoft.