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32bit and 64 bit dll together

Posted on 2013-06-18
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Last Modified: 2013-09-20
Hi

i have 32 bit dll reference in my project and my project is targetting to 64 bit,  if i deploy this on IIS 7 on Windows server 2008 R2 , while i try to browse these  i am getting could not load assembly error.

so, could you please guide me how to solve this error, but here i don't want to target anyCpu.
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Question by:praveen1981
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LVL 21

Expert Comment

by:Craig Wagner
ID: 39257920
In the application pool there is a setting to enable 32-bit applications. Try setting that to true and see if it solves your problem.
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Author Comment

by:praveen1981
ID: 39258349
Hi

If i set enable 32-bit applications to true,  it is allowing only 32 bit dlls, but not 64 bit dlls, but i have both dlls in my project, is it possible to run 32 bit and 64 bit process at same time

Please suggest
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LVL 21

Expert Comment

by:Craig Wagner
ID: 39258405
Are you sure about that or are you speculating? Put another way, did you actually try it? I was pretty sure we had both running inside a single process in our application but I could be mistaken.
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LVL 4

Expert Comment

by:jiangsheng
ID: 39260535
you can't load 32 bit code in a 64 bit process or load 64 bit code in 32 bit process.

You have to split your project into two applications that will be ran in different application pools, one x86 and one x64. Use any interprocess-communication (WCF, web services, socket, named pipe etc) to communicate between application pools.
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Accepted Solution

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praveen1981 earned 0 total points
ID: 39277220
Hi

i set enable 32-bit applications to false , then it started working fine.
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Author Closing Comment

by:praveen1981
ID: 39508586
working fine.
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