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Precompile an ASP .net website and publish it without source code or markup

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If you build your web application in Visual Studio you'll get at least a few binaries, or .DLL, files in your bin folder. However, there is more compiling to be done. Normally this would happen when an ASP.NET resource within the web site is requested for the first time after restart.   You can avoid this first-time-access compilation by deploying your web application in a precompiled state!

Precompile your web application before deployment

When you precompile your web application the following takes place:

All markup files (.aspx) are stripped of their content
All web service files (.asmx) are stripped of their content
All code-behind files (.cs) are removed
All user control files (.ascx) are removed

This means that you will be able to deploy your website entirely without readable markup or source code.

You still need all the markup files in the correct places, but they will no longer contain any actual markup.  So, in the future you won't have to worry about updating .aspx files - unless new ones have been added to the web application.

How to precompile your website

In order to precompile your web application you need to use a simple command prompt command. If you wanted you could add this command to a post-build event to automate the process.

The precompilation is carried out by the aspnet_compiler executable located in your .NET installation folder. If you run the Visual Studio command prompt you won't have to worry about that though - the path variable is then set so that you can execute the aspnet_compiler executable regardless of what folder you are in.

If you use the standard command prompt (cmd) you'll have to switch to the correct .NET installation folder, for example:

cd C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727

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Example:  Let's say I have a website located in C:MyWebSite. In order to precompile this website I use aspnet_compiler and specify a target folder for the precompiled output:

aspnet_compiler -p C:MyWebsite -v / C:MyPrecompiledWebsite

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The  C:MyPrecompiledWebsite will now contain a precompiled version of the web application. All markup and web service files will now be empty.

You are now ready to deploy!

If you want more information visit the below link:

    ASP.NET Web Site Precompilation  
    http://msdn.microsoft.com/en-us/library/ms228015(VS.85).aspx
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