/ALLOWISOLATION (Manifest Lookup)
Specifies behavior for manifest lookup.
/ALLOWISOLATION:NO indicates DLLs are loaded as if there was no manifest and causes the linker to set the
IMAGE_DLLCHARACTERISTICS_NO_ISOLATION bit in the optional header's
/ALLOWISOLATION causes the operating system to do manifest lookups and loads.
/ALLOWISOLATION is the default.
When isolation is disabled for an executable, the Windows loader will not attempt to find an application manifest for the newly created process. The new process will not have a default activation context, even if there is a manifest inside the executable or placed in the same directory as the executable with name executable-name.exe.manifest.
For more information, see Manifest Files Reference.
To set this linker option in the Visual Studio development environment
Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.
Select the Configuration Properties > Linker > Manifest File property page.
Modify the Allow Isolation property.
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