The document outlines the differences between CCW and RCW, DLLs and EXEs, and managed and unmanaged code. CCW is used for COM to .NET communication while RCW is for .NET to COM. DLLs allow object creation and are in-process while EXEs do not allow object creation and are out-of-process. Managed code runs under CLR, compiles to intermediate language, and provides services like security while unmanaged code does not run under CLR, compiles directly to machine code, and does not provide those services.

1. 1) What is the difference between CCW and RCW?
S.N CCW RCW
o
1 COM to .NET communication .NET to COM Communication
happens through COM happens through Runtime
Callable Wrapper Callable Wrapper
2) What are the differences between Dll and Exe?
S.N Dll Exe
o
1 Objects of Dlls can be Objects of Exe cannot be created
created
2 Dll is In-Process Exe is Out-Process
3 It cannot be started as a It can be started as a standalone
standalone
3) What are the differences between Managed Code and
Unmanaged Code?
S.N Managed Code Unmanaged Code
o
1 It is executed under CLR It is not executed under CLR
2 It compiles to intermediate It compiles directly to machine
language code
3 It provides services like It does not provide security,
security, exception handling, exception handling, garbage
garbage collection etc collection etc
4 It can access both managed It can access only unmanaged
and unmanaged code code