>Sometimes, when I send a new compilation in the Bin directory of the Web site, during the time it takes to reload everything in memory, I may get ASP.NET message on the browser such as:
>
>"Cannot create/shadow copy 'Interop.ADODB' when that file already exists."
>
>...or whatever the library that is in the Bin directory.
>
>This is rare but happens from time to time. After a few seconds, retrying will make the hit to the server work. Most of the time, at 99%, a hit, during such a situation, will have the browser wait for the server response.
>
>But, on the situation of the cannot created shadow copy, would there be a way to avoid that?

<hostingEnvironment shadowCopyBinAssemblies="false" />

in web.config?