""Jeffrey Tan[MSFT]"" <v-jetan@online.microsoft.com> wrote in message
news:x9Mm%23mBlFHA.940@TK2MSFTNGXA01.phx.gbl...
> Hi Matt,
>
> Thanks for your post.
>
> Yes, I think this should can be done. Because I found some internal record
> regarding this issue: using DefineUserString to do IL modification for
> certain application. Although I have not tried this yet.
>
> For the link you tried, it is a rotor sample code. Do you used rotor to
> try
> it or do you modifiy it and try it on .Net Framework?(Based on my
> experience, to use it in .Net Framework, we have to modify some of this
> source code) If you try this source code on rotor, can you tell me which
> OS
> you did the test? Normally, Rotor can only run successfully before
> WindowsXP SP2, on my Win2003 machine, it will fail...
>
> If you do the code modification and test it in .Net Frameowrk 1.1, can you
> provide me your test sample project, then we can do some test and
> reproduce
> out your problem. Thanks.
>
> Finally, if you want to get more information about IL modification, there
> is a wonderful MSDN article talk about this:
> "Rewrite MSIL Code on the Fly with the .NET Framework Profiling API "
> http://msdn.microsoft.com/msdnmag/issues/03/09/NETProfilingAPI/
>
> Hope this helps
> ==========================================================
> Thank you for your patience and cooperation. If you have any questions or
> concerns, please feel free to post it in the group. I am standing by to be
> of assistance.
>
> Best regards,
> Jeffrey Tan
> Microsoft Online Partner Support
> Get Secure! - www.microsoft.com/security
> This posting is provided "as is" with no warranties and confers no rights.
>

""Jeffrey Tan[MSFT]"" <v-jetan@online.microsoft.com> wrote in message
news:mLcI4sAmFHA.944@TK2MSFTNGXA01.phx.gbl...
> Hi Matt,
>
> Thanks for your feedback.
>
> Yes, I have used Matt Pietrek's DNProfiler sample in MSDN Magazine, 2001
> to
> test the code. I also will get InvalidProgramException with the code, so
> it
> seems that there is some problem in the code.
>
> I still did not have time to find the root cause problem to the code.
> Anyway, I have tried the IL rewriting code snippet in the article below,
> and it works well on my side:
> "IL modification at runtime (step III)"
> http://blog.monstuff.com/archives/000077.html
>
> Note: to success use the code, we should first write an Exe applicaiton
> with the code:
> using System;
>
> public class Hello
> {
> public static void Main(string[] prms)
> {
> Console.WriteLine("main!");
> blah(4,5);
> }
>
> public static void blah(int i, int j) {
> Console.WriteLine("blah!");
> Console.WriteLine(i);
> Console.WriteLine(j);
> }
> }
>
> Then, we should place an assembly with the name logger.dll containing code
> below:
> using System;
>
> namespace DumkyNamespace
> {
> public class Logger
> {
> public static void Log(int i)
> {
> Console.WriteLine("Log!" + i);
> }
> }
> }
>
> Hope this helps
> ===============================================
> Thank you for your patience and cooperation. If you have any questions or
> concerns, please feel free to post it in the group. I am standing by to be
> of assistance.
>
> Best regards,
> Jeffrey Tan
> Microsoft Online Partner Support
> Get Secure! - www.microsoft.com/security
> This posting is provided "as is" with no warranties and confers no rights.
>

""Jeffrey Tan[MSFT]"" <v-jetan@online.microsoft.com> wrote in message
news:LGul6MZmFHA.3120@TK2MSFTNGXA01.phx.gbl...
> Hi Matt,
>
> Sorry for letting you wait.
>
> I have contacted "Jan Kotas" for this article. And he has confirmed that
> there is a little bug in the sample code snippet. We should change
> ILCode.Flags_CodeSize = 0x42; to ILCode.Flags_CodeSize = 0x2E; . I have
> applied this change and everything works well now.
>
> Hope this helps
>
> Best regards,
> Jeffrey Tan
> Microsoft Online Partner Support
> Get Secure! - www.microsoft.com/security
> This posting is provided "as is" with no warranties and confers no rights.
>