>If I update a component from the Web site, this will make the next hit on the Web site to be longer because there is some kind of compilation or new loading of the required objects. During that time, sometimes, if some clicks are initiated in sequence to the same page, I may get the following message:
>
>

>Item has already been added. Key in dictionary: 'ALL_RAW'  Key being added: 'ALL_RAW'
>

>
>How can I avoid this situation?

Hello Michel,

Here is the solution :)

aspnet_compiler.exe -p c:\Projects\ASP.NET\TheBeerHouse\TBH_Web -v /TheBeerHouse c:\Deployment\TheBeerHouse

The -p parameter specifies the source directory, and the -v parameter specifies the virtual directory used at runtime by the site. The path at the end of the command is the destination directory for the compiler output files.

Source: http://www.dotnet2themax.com/blogs/mbellinaso/PermaLink,guid,f74b0894-a572-4187-9dd8-74215c77d0bb.aspx