Microsoft dll best practices

It's now called Microsoft Defender for Cloud Apps. In the coming weeks, we'll update the screenshots and instructions here and in related pages.

For more information about the change, see this announcement. To learn more about the recent renaming of Microsoft security services, see the Microsoft Ignite Security blog. This article provides best practices for protecting your organization by using Microsoft Defender for Cloud Apps.

These best practices come from our experience with Defender for Cloud Apps and the experiences of customers like you. Integrating Defender for Cloud Apps with Microsoft Defender for Endpoint gives you the ability to use Cloud Discovery beyond your corporate network or secure web gateways. With the combined user and device information, you can identify risky users or devices, see what apps they are using, and investigate further in the Defender for Endpoint portal.

Best practice : Enable Shadow IT Discovery using Defender for Endpoint Detail : Cloud Discovery analyzes traffic logs collected by Defender for Endpoint and assesses identified apps against the cloud app catalog to provide compliance and security information. By configuring Cloud Discovery, you gain visibility into cloud use, Shadow IT, and continuous monitoring of the unsanctioned apps being used by your users.

For more information :. Best practice : Configure App Discovery policies to proactively identify risky, non-compliant, and trending apps Details : App Discovery policies make it easier to track of the significant discovered applications in your organization to help you manage these applications efficiently.

Create policies to receive alerts when detecting new apps that are identified as either risky, non-compliant, trending, or high-volume. Best practice : Manage OAuth apps that are authorized by your users Detail : Many users casually grant OAuth permissions to third-party apps to access their account information and, in doing so, inadvertently also give access to their data in other cloud apps.

Usually, IT has no visibility into these apps making it difficult to weigh the security risk of an app against the productivity benefit that it provides. Defender for Cloud Apps provides you with the ability to investigate and monitor the app permissions your users granted. You can use this information to identify a potentially suspicious app and, if you determine that it is risky, you can be ban access to it. Best practice : Tag apps and export block scripts Detail : After you've reviewed the list of discovered apps in your organization, you can secure your environment against unwanted app use.

You can apply the Sanctioned tag to apps that are approved by your organization and the Unsanctioned tag to apps that are not. You can monitor unsanctioned apps using discovery filters or export a script to block unsanctioned apps using your on-premises security appliances. Using tags and export scripts allows you to organize your apps and protect your environment by only allow safe apps to be accessed. Best practice : Connect your apps Detail : Connecting your apps to Defender for Cloud Apps gives you improved insights into your users' activities, threat detection, and governance capabilities.

If the same type is loaded from two versions of the same assembly, it is as if two different types with the same name had been loaded. For example, your program might load one version of the Utility assembly directly, and later it might load another assembly that loads a different version of the Utility assembly. Or a coding error might cause two different code paths in your application to load different versions of an assembly. In the default load context, this problem can occur when you use the Assembly.

Load method and specify complete assembly display names that include different version numbers. For assemblies that are loaded without context, the problem can be caused by using the Assembly. LoadFile method to load the same assembly from different paths. The runtime considers two assemblies that are loaded from different paths to be different assemblies, even if their identities are the same.

In addition to type identity problems, multiple versions of an assembly can cause a MissingMethodException if a type that is loaded from one version of the assembly is passed to code that expects that type from a different version.

For example, the code might expect a method that was added to the later version. More subtle errors can occur if the behavior of the type changed between versions. For example, a method might throw an unexpected exception or return an unexpected value.

Carefully review your code to ensure that only one version of an assembly is loaded. You can use the AppDomain. GetAssemblies method to determine which assemblies are loaded at any given time.

Examine your application's assembly loading and deployment patterns. Can you eliminate assemblies that are loaded from byte arrays? Can you move assemblies into the probing path?

If assemblies are located in the global assembly cache or in the application domain's probing path that is, its ApplicationBase and PrivateBinPath , you can load the assembly by its identity.

If it is not possible to put all your assemblies in the probing path, consider alternatives such as using the. NET Framework add-in model, placing assemblies into the global assembly cache, or creating application domains. If you are using the load-from context to implement add-ins, which typically are not installed in the application base, use the.

NET Framework add-in model. This model provides isolation at the application domain or process level, without requiring you to manage application domains yourself. For information about the add-in model, see Add-ins and Extensibility. Place assemblies in the global assembly cache to get the benefit of a shared assembly path that is outside the application base, without losing the advantages of the default load context or taking on the disadvantages of the other contexts.

If you determine that some of your assemblies cannot be deployed in the application's probing path, consider creating a new application domain for those assemblies. ApplicationBase property to specify the path that contains the assemblies you want to load. If you have multiple directories to probe, you can set the ApplicationBase to a root directory and use the AppDomainSetup. PrivateBinPath property to identify the subdirectories to probe.

Alternatively, you can create multiple application domains and set the ApplicationBase of each application domain to the appropriate path for its assemblies. Note that you can use the Assembly. LoadFrom method to load these assemblies. Because they are now in the probing path, they will be loaded into the default load context instead of the load-from context. When blittable types are passed by reference with in , ref , or out , or when types with blittable contents are passed by value, they're simply pinned by the marshaller instead of being copied to an intermediate buffer.

Unicode set. You can see if a type is blittable or contains blittable contents by attempting to create a pinned GCHandle. If the type isn't a string or considered blittable, GCHandle. Alloc will throw an ArgumentException.

KeepAlive will ensure an object stays in scope until the KeepAlive method is hit. It can be used instead of IntPtr in method signatures. SafeHandle effectively replaces this class and should be used instead. GCHandle allows pinning a managed object and getting the native pointer to it.

The basic pattern is:. Pinning isn't the default for GCHandle. The other major pattern is for passing a reference to a managed object through native code and back to managed code, usually with a callback.

Here is the pattern:. Here is a list of data types commonly used in Windows APIs and which C types to use when calling into the Windows code. The following types, being pointers, do follow the width of the platform.

Windows Data Types. The UnmanagedType. HString built-in marshal support was removed in the. NET 5 release. You must recompile binaries that use this marshaling type and that target a previous framework. It's still possible to marshal this type, but you must marshal it manually, as the following code example shows. This code will work moving forward and is also compatible with previous frameworks.

When writing cross-platform interop, cases can arise where platforms differ and can cause issues if not considered. This means there is a minimum number of required bits, but platforms can choose to use more bits if desired. The following example is for CLong , but you can use CULong to abstract unsigned long in a similar way.

When targeting. NET 5 and earlier versions, you should declare separate Windows and non-Windows signatures to handle the problem. This is illustrated by the "satdll" sample application, which is fundamentally broken. This technique is used, I believe, by Microsoft Office. If I understand correctly, MFC would try to load satellite dlls automatically using this naming convention. In contrast, the. My question is, is there an accepted standard for naming satellite dlls and the directories in which they are placed, for MFC projects?

But I think the best practice is a folder with content named the same. Advantages: - you can store other localizable files too think help, license, templates, samples, etc.