I get a “An attempt was made to load a program with an incorrect format” error on a SQL Server replication project

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The answer by baldy below is correct, but you may also need to enable 32-bit applications in your AppPool.

Source: http://www.alexjamesbrown.com/uncategorized/could-not-load-file-or-assembly-chilkatdotnet2-or-one-of-its-dependencies-an-attempt-was-made-to-load-a-program-with-an-incorrect-format/

Whilst setting up an application to run on my local machine (running Vista 64bit) I encountered this error:

Could not load file or assembly ChilkatDotNet2 or one of its
dependencies. An attempt was made to load a program with an incorrect
format.

Obviously, the application uses ChilKat components, but it would seem that the version we are using, is only the 32bit version.

To resolve this error, I set my app pool in IIS to allow 32bit applications.
Open up IIS Manager, right click on the app pool, and select Advanced Settings (See below)

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Then set “Enable 32-bit Applications” to True.

enter image description here

All done!

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