Net assembly publisher policy file

Privacy policy. When a component vendor releases a new version of an assembly, the vendor can include a publisher policy so applications that use the old version now use the new version. The default setting for the apply attribute is yes. Setting the apply attribute to no overrides any previous yes settings for an assembly. Skip to main content. This browser is no longer supported. That is, you can turn off the policy for all assemblies that make up the application, or turn it on for some assemblies but not others.

For more about configuration, see Configuring Apps by using Configuration Files. Third, the runtime examines the machine configuration file. This file, called Machine. This file can be used by administrators to specify assembly binding restrictions that are local to that computer. The settings in the machine configuration file take precedence over all other configuration settings; however, this does not mean that all configuration settings should be put in this file. The version determined by the administrator policy file is final, and cannot be overridden.

Overrides specified in the Machine. For more information about configuration files, see Configuring Apps by using Configuration Files. If the requested assembly has also been requested in previous calls, the common language runtime uses the assembly that is already loaded. This can have ramifications when naming assemblies that make up an application.

For more information about naming assemblies, see Assembly Names. If a previous request for the assembly failed, subsequent requests for the assembly are failed immediately without attempting to load the assembly. Starting with the. NET Framework version 2. To revert to the behavior of the.

NET Framework versions 1. For strong-named assemblies, the binding process continues by looking in the global assembly cache. The global assembly cache stores assemblies that can be used by several applications on a computer. All assemblies in the global assembly cache must have strong names. After the correct assembly version has been determined by using the information in the calling assembly's reference and in the configuration files, and after it has checked in the global assembly cache only for strong-named assemblies , the common language runtime attempts to find the assembly.

The process of locating an assembly involves the following steps:. If a match is found, that assembly is used and no probing occurs. If the assembly is not found there, the binding request fails. The runtime then probes for the referenced assembly using the rules specified later in this section. If it is a correct match, that assembly is used.

If it is not a correct match, probing stops and binding fails. This codebase is always checked before the runtime attempts to probe for the referenced assembly. If the runtime determines that an assembly matches the calling assembly's criteria, it uses that assembly.

This location can be specified in the application configuration file and in managed code using the AppDomainSetup. PrivateBinPath property for an application domain. When specified in managed code, the managed code privatePath is probed first, followed by the path specified in the application configuration file.

The runtime always begins probing in the application's base, which can be either a URL or the application's root directory on a computer. If the referenced assembly is not found in the application base and no culture information is provided, the runtime searches any subdirectories with the assembly name.

The directories probed include:. If culture information is specified for the referenced assembly, only the following directories are probed:. The directories specified using the privatePath attribute must be subdirectories of the application's root directory.

The directories probed vary depending on whether culture information is included in the referenced assembly request. The runtime stops probing the first time it finds an assembly that matches the simple assembly name referenced, whether it is a correct match or not. Assembly location can also be determined using the current binding context. This most often occurs when the Assembly. LoadFrom method is used and in COM interop scenarios. If an assembly uses the LoadFrom method to reference another assembly, the calling assembly's location is considered to be a hint about where to find the referenced assembly.

Privacy policy. Vendors of assemblies can state that applications should use a newer version of an assembly by including a publisher policy file with the upgraded assembly. The publisher policy file specifies assembly redirection and code base settings, and uses the same format as an application configuration file. The publisher policy file is compiled into an assembly and placed in the global assembly cache.

The schema for publisher policy is described in Redirecting Assembly Versions. The following example shows a publisher policy file that redirects one version of myAssembly to another. To learn how to specify a code base, see Specifying an Assembly's Location.

Use the Assembly Linker Al. The publisherPolicyAssemblyFile argument is the name of the publisher policy assembly that results from this command. The assembly file name must follow the format:. The keyPairFile argument is the name of the file containing the key pair. You must sign the assembly and publisher policy assembly with the same key pair.