Debug Microsoft SharePoint code - disable optimization

Question

I want to debug Microsoft code on SharePoint site.

I download .NET Reflector Visual Studio Extension so I can step into Microsoft code, but when I try to get the value of some variables - I get the error: "Cannot obtain value of local or argument <this> as it is not available at this instruction pointer, possibly because it has been optimized away."

I try to cancel the optimization, I saw what Cameron MacFarland wrote here , So I created a file with the commands that open VS without JIT optimizations. As for the second action - I do not know how to do it when it comes to a SharePoint application that IIS is running it.

How to achieve this?

EDIT: My question is basically: How to disable code optimization when the code is run by IIS?

Answer 1

I posted the answer here , and then saw that it also applied to your specific question.

Long story short, there is a registry setting you can change to make this work. Add a string key called "COMPLUS_ZAPDISABLE" to your registry at "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment". Set the key value to "1"

This original Red Gate article helped me find this trick.

Answer 2

The solution I did in the end, Is more or less what JaredPar wrote here :

I created a file that looks like this:

[.NET Framework Debugging Control] 
GenerateTrackingInfo=1 
AllowOptimize=0

And I put it in the GAC, within each folder of dll I wanted to disable its optimization, and named it with the name of the dll, with the extension "ini".

Now, the vast majority of variables are available to me.