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June 2009 - Posts

Wednesday, June 24, 2009 11:48 AM

Enabling CAS Policy Compatibility Mode for a Project

If you’re migrating a VS project over to VS 2010 Beta1 and you are calling code that is passing Evidence objects to the runtime expecting security policy resolution, or if you’re using a permission Deny , you may run into the following exception: NotSupportedException:
Posted by CLRTeam | 0 Comments
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Friday, June 19, 2009 9:59 PM

Getting more information than the exception class provides

We recently had a question about how to get more information than an exception’s type provides. The developer was trying to copy a file and didn’t know why the copy was failing. File copies can fail for many reasons, almost all of them what Eric Lippert
Posted by CLRTeam | 9 Comments
Friday, June 19, 2009 2:42 PM

Tail Call Improvements in .Net Framework 4

Grant Richins has a post on the CLR Code Generation team blog that covers the work done to improve the x64 JIT to honor the "tail." instruction prefix, thereby making functional languages like F# more viable. You can find the full post here .
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Thursday, June 11, 2009 12:16 PM

What's New for .Net Framework Security

Shawn Farkas, CLR security developer, has started a cool series of posts on what’s new in .NET Framework 4 security. If you’re doing any work with or have scenarios involving partially trusted code, you’ll want to take a look. Topics include sandboxing,
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Wednesday, June 10, 2009 6:56 PM

New Security Model: Moving to a Better Sandbox

For .Net Framework 4, we decided to remove the dependency on caspol and the policy levels and make things simpler. With this change, the default grant-set for assemblies is now FullTrust unless the host (such as InternetExplorer) decides to load them
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Sunday, June 07, 2009 1:36 PM

In-Process Side by Side Part 2 - Common in-proc SxS scenarios

Update: The information in this blog post applies to pre beta-1 behavior and is not applicable to beta 2 and RTM. We will have more posts and documentation on this subject as we get closer to RTM. This section covers the most common in-process side by
Posted by CLRTeam | 5 Comments
Wednesday, June 03, 2009 6:52 PM

In-Process Side by Side (Part1)

One of the new features in CLR 4 is In-Process Side-by-side (Inproc SxS) – a feature that lets you use multiple versions of .NET in the same process. For applications that use add-ins (particularly COM add-ins), in-proc SxS lets us provide a level of
Posted by CLRTeam | 8 Comments
Monday, June 01, 2009 2:46 PM

CLR Inside Out - Memory Usage Auditing For .NET Applications

The new installment of the “CLR Inside Out” column in MSDN magazine is now available on line. This month we have an article from Subramanian Ramaswamy and Vance Morrison on Memory Usage Auditing For .NET Applications . You can find a list of all “CLR
Posted by CLRTeam | 1 Comments
 
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