What is the advantage of using .NET DLL instead of COM?

[Nick]

Hi,

I would like to know what is the advantage of using .NET DLL instead of
using COM DLL in my C# application...

Currently, I have two options, using .NET DLL or COM DLL

Besides .NET DLL is managed (more safe), I would like to know will I
gain performance when I call unmanaged COM DLL instead of .NET DLL in
my C# program?

THanks!

Nick

[Jon Skeet [C# MVP]]

Nick <ni*****@heha.net.tw> wrote:

I would like to know what is the advantage of using .NET DLL instead of
using COM DLL in my C# application...

Currently, I have two options, using .NET DLL or COM DLL

Besides .NET DLL is managed (more safe), I would like to know will I
gain performance when I call unmanaged COM DLL instead of .NET DLL in
my C# program?

Using COM would involve marshalling for each method call. A few things
may be a bit faster in unmanaged code, but for the most part keeping it
all managed would be a lot simpler - and easier to debug!

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Ignacio Machin \( .NET/ C# MVP \)]

Hi Nick,
I dont quite understand your escenario, are you saying that you have the
same functionality implemented both in managed (.net ) and unmanaged
versions?

if your client ( app that will use the dll ) is managed you should use the
..net version for the simple reason explained by john

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"Nick" <ni*****@heha.net.tw> wrote in message
news:ug**************@TK2MSFTNGP11.phx.gbl...

Hi,

I would like to know what is the advantage of using .NET DLL instead of
using COM DLL in my C# application...

Currently, I have two options, using .NET DLL or COM DLL

Besides .NET DLL is managed (more safe), I would like to know will I
gain performance when I call unmanaged COM DLL instead of .NET DLL in
my C# program?

THanks!

Nick

[Nick]

thanks all

nick

Ignacio Machin ( .NET/ C# MVP ) wrote:

Hi Nick,
I dont quite understand your escenario, are you saying that you have the
same functionality implemented both in managed (.net ) and unmanaged
versions? Yes

if your client ( app that will use the dll ) is managed you should use the
.net version for the simple reason explained by john

cheers,