Hi there
I have a quesion regadring what happens when my "Hello World" program starts up. I have a hard time visualiszing this.

Lets suppose I have a Simple Console based Hello World EXE program. When I run this from command line what are the steps that it goes through to execute the program. I guess CLR has to be started before running this program. Please help me on this basic question
Thank
Sreeharsha.

Here is a simplified version of what happens:

The OS loader checks for managed modules by examining a bit in the common
object file format (COFF) header. The bit being set denotes a managed
module. If the loader detects managed modules, it loads mscoree.dll, and
_CorValidateImage and _CorImageUnloading notify the loader when the managed
module images are loaded and unloaded. _CorValidateImage performs the
following actions:

1.. Ensures that the code is valid managed code.
2.. Changes the entry point in the image to an entry point in the runtime.
3.. The entry point is Jitted and execution in your app begins.
--

Chris Rolon

This posting is provided "AS IS" with no warranties, and confers no rights.

"Sreeharsha" <sreeharsha75 (AT) yahoo (DOT) com> wrote

execute the program. I guess CLR has to be started before running this
program. Please help me on this basic question.

Thanks Chris for your answer. This clarifies my question. I have to go
little in depth to understand this little better.

Thanks
Sreeharsha.


"Chris Rolon" <crolon (AT) hotmail (DOT) com> wrote

When you run your exe in command window, CLR excution engin will started
and your exe file will be loaded. Since you run on your own machine,
normally default security setting for your own machine give you full
rights. So your code can passed the security checking. and excution engin
will run your code.

But if you run a code through internet or intranet, depending what you do
in your code, the code can be rejected by security checking.

Betsy
This posting is provided "AS IS" with no warranties, and confers no rights.