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.NET Forum / Languages / C# / March 2008

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Share memory between two .net application

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Gjoshi029 - 29 Mar 2008 07:25 GMT
How can i share a common memory between two .net programs.
Can it be possible.

Kindly help me.

Thanks
Peter Bromberg [C# MVP] - 29 Mar 2008 12:52 GMT
You can't actually share the "memory" because two .NET applications would
each be runnning in a separate AppDomain. However, you can use techniques
such as Memory Mapped Files or Named Pipes to "share" communication or data
between processes.
-- Peter
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> How can i share a common memory between two .net programs.
> Can it be possible.
>
> Kindly help me.
>
> Thanks
Arne Vajhøj - 29 Mar 2008 18:58 GMT
> You can't actually share the "memory" because two .NET applications would
> each be runnning in a separate AppDomain. However, you can use techniques
> such as Memory Mapped Files or Named Pipes to "share" communication or data
> between processes.

It should be noted that CreateFileMapping and MapViewOfFile does
not require a separate file (by using -1 as file handle it gets
mapped to the pagefile).

Arne
Arne Vajhøj - 29 Mar 2008 18:56 GMT
> How can i share a common memory between two .net programs.
> Can it be possible.

You can map to a shared memory section using Win32 API
and copy to and from it using the Marshal class.

Arne

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