Suzanne Cook's .NET CLR Notes
Common Language Runtime Developer
Channel 9 Interview
Charles Torre and Robert Scoble (behind the camera) dropped by my office to chat with me about the...
Author: Suzanne Cook - Microsoft Date: 02/11/2005
New Assembly, Old .NET (and Vice-Versa)
I typically recommend that you build and test your assemblies against the same version of .NET that...
Author: Suzanne Cook - Microsoft Date: 01/26/2005
Versioning/Deploying Unmanaged Files
An unmanaged dll can be wrapped in a managed assembly by adding it as a file of a multi-module...
Author: Suzanne Cook - Microsoft Date: 10/28/2004
Load(AssemblyName)
Calling Load(AssemblyName) is not necessarily the same as calling Load(String). If the...
Author: Suzanne Cook - Microsoft Date: 08/04/2004
Debugging an InvalidCastException
First, obviously, find the two types for which the cast failed and verify that they are the same...
Author: Suzanne Cook - Microsoft Date: 06/02/2004
App.config Examples
Below are three examples of useful application configuration files. Forces the v1.0 CLR to be run....
Author: Suzanne Cook - Microsoft Date: 05/14/2004
Determining Whether a File Is an Assembly
A file is an assembly if and only if it's managed and it contains an Assembly entry in its CLR...
Author: Suzanne Cook - Microsoft Date: 03/18/2004
Debugging a MissingMethodException, MissingFieldException, TypeLoadException
Say you've just installed some assemblies from a third party and now you're seeing a...
Author: Suzanne Cook - Microsoft Date: 02/13/2004
Where to Find Technical Support
Microsoft's official support website is https://support.microsoft.com/. It has all kinds of resources...
Author: Suzanne Cook - Microsoft Date: 12/05/2003
Determining the Referencing Assembly
Say you're debugging your application and you see that version 1.0 of an assembly is being loaded...
Author: Suzanne Cook - Microsoft Date: 11/15/2003
LoadFile vs. LoadFrom
Be careful - these aren't the same thing. LoadFrom() goes through Fusion and can be redirected to...
Author: Suzanne Cook - Microsoft Date: 09/19/2003
LoadFrom's Second Bind
Pre-v2, when you load an assembly by path through Fusion (LoadFrom(), ExecuteAssembly(), etc.), it...
Author: Suzanne Cook - Microsoft Date: 09/16/2003
Avoid DevPath
I hesitate to talk about this because I don't want people who don't know about it to think, "Hey,...
Author: Suzanne Cook - Microsoft Date: 08/15/2003
ReflectionTypeLoadException
If a type can't be loaded for some reason during a call to Module.GetTypes(),...
Author: Suzanne Cook - Microsoft Date: 08/11/2003
Binding to .NET Frameworks Assemblies
By "Frameworks assemblies," I mean the assemblies that ship with the CLR. But, I'm not counting...
Author: Suzanne Cook - Microsoft Date: 07/30/2003
Assembly Identity
There are two types of assembly identity that the loader deals with: bind-time and after bind-time....
Author: Suzanne Cook - Microsoft Date: 07/21/2003
Unloading an Assembly
There's no way to unload an individual assembly without unloading all of the appdomains containing...
Author: Suzanne Cook - Microsoft Date: 07/08/2003
Mscorlib.dll
At least for v2 and earlier, mscorlib.dll is a special case. That causes it and its types to be...
Author: Suzanne Cook - Microsoft Date: 06/30/2003
Assembly.CodeBase vs. Assembly.Location
The CodeBase is a URL to the place where the file was found, while the Location is the path from...
Author: Suzanne Cook - Microsoft Date: 06/26/2003
Determining an Image’s CLR Version
To get it programmatically, from managed code, use Assembly.ImageRuntimeVersion. From unmanaged, use...
Author: Suzanne Cook - Microsoft Date: 06/20/2003
AppDomain.Load()
AppDomain.Load() is only meant to be called on AppDomain.CurrentDomain. (It's meant for interop...
Author: Suzanne Cook - Microsoft Date: 06/16/2003
Switching to the Load Context
So, after checking out the binding context options, you've decided to switch your app to use the...
Author: Suzanne Cook - Microsoft Date: 06/13/2003
Executing Code in Another AppDomain
The easiest way to run code in another appdomain is to execute an assembly entrypoint using...
Author: Suzanne Cook - Microsoft Date: 06/12/2003
App.Config Files
By default, the application configuration file of the default appdomain (and other appdomains for...
Author: Suzanne Cook - Microsoft Date: 06/02/2003
Avoid Partial Binds
A partial bind is when only part of the assembly display name is given when loading an assembly....
Author: Suzanne Cook - Microsoft Date: 05/30/2003
Using Type.GetType(typeName)
If no assembly is specified, Type.GetType() will only look in the calling assembly and then...
Author: Suzanne Cook - Microsoft Date: 05/30/2003
When to Change File/Assembly Versions
First of all, file versions and assembly versions need not coincide with each other. I recommend...
Author: Suzanne Cook - Microsoft Date: 05/30/2003
Choosing a Binding Context
There are three 'contexts' for assembly binding: Load context In general, if the assembly was found...
Author: Suzanne Cook - Microsoft Date: 05/29/2003
Assembly Display Names
An assembly display name should include the assembly simple name, version, culture and public key...
Author: Suzanne Cook - Microsoft Date: 05/29/2003
Debugging Assembly Loading Failures
So...you're seeing a FileNotFoundException, FileLoadException, BadImageFormatException or you...
Author: Suzanne Cook - Microsoft Date: 05/29/2003