What Compiler Options we need to choose ?

[Dinesh Jain]

Hi All,
When we give a .NET exe to client, what comlier options
we should change to give it as a Release Build?
I know about setting the output as release build
(Configuration Manager) but confused about enabling
JIT option. It is necessery to turn it on?
Please help,

Thanks in advance,

-Regards,
Dinesh

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[Keith Fink]

Dinesh,

I'm not sure what you're asking. You don't have to set any compiler options
to have a release build. You just need to set the active configuration for
a release build.

Do you mean whether you should use NGen to pre-JIT the code? If you build
using a release configuration, the assembly is still compiled to MSIL. When
this is run on the target machine, it will be JIT compiled by the CLR to
native code and executed. If you want to have your assembly pre-jitted so
this doesn't have to be done every time, you can use NGen to do this on the
target machine. NGen will JIT the assembly and cache it, so that when the
assembly is executed, we retrieve the native code from the cache rather
than having to jit compile during execution.

I hope that helps. Let me know if you have further questions.

Thank you,

Keith Fink
Microsoft Developer Support
Visual Basic .NET

[Dinesh Jain]

Hi Keith,
I mean say - do we need to set the configuration to Release build and
no other settings are required ?
As you said about Ngen utility, is it that when application is installed
on target machine, we have to call ngen.exe
from installation program before first time running the application?

Please help,

Thanks in advance,

-Regards,
Dinesh


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[Keith Fink]

Hi Dinesh,

See answers inline.

<<<Do we need to set the configuration to Release build and no other
settings are required?>>>

That is correct.

<<<As you said about Ngen utility, is it that when application is installed
on target machine, we have to call ngen.exe from installation program
before first time running the application?>>>

It all depends on what exactly you are trying to accomplish. You don't have
to use NGen at all. If your goal is to just build a release version, then
setting the active configuration to "Release" will do that. Your assembly
will be compiled to MSIL which can then be deployed and run on the target
machine.

If you want to pre-JIT the assembly so that its compiled to native code on
the target machine, you must run NGen on the target machine after deploying
the assembly to it.

Keith