Ngen.exe

Ngen.exe Native Image Generator

Synopsis

ngen [options] [assembly-path-or-display-name ...]

Description

Compiles an assembly to native code and installs a native image in the local computer's native image cache. That native image is used each time you access the original assembly, even though the original assembly contains MSIL. If the runtime can't locate the native image, it falls back on JIT compilation.

Examples

ngen foo.exe
ngen foo.dll

Options

/debug

Generates a native image that can be used with a debugger.

/debugopt

Generates a native image that can be used with a debugger in optimized debugging mode.

/delete

Deletes native images matching assembly-path-or-display-name. Use * for assembly-path-or-display-name to delete all native images.

/nologo

Suppresses display of the banner and copyright messages.

/prof

Generates a native image that can be used with a profiler.

/show

Lists native images matching assembly-path-or-display-name. If assembly-path-or-display-name is not supplied, lists all native images.

/showversion

Displays the version of the .NET runtime that would be used to generate the native image. Does not actually generate the image. (Added in .NET 1.1.)

/silent

Suppresses display of success messages.



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