The ASP.NET engine keeps the pre-compiled files in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files.
You will know that the site is precompiled because the pages respond in a second or two, as compared to 10 to 20 seconds.
I think you misunderstand what we mean by pre-compile. From a SplendidCRM perspective, by hitting the page at least once, we allow the ASP.NET engine to do its magic to ensure that future visits will be fast. We do not imply that our approach to pre-compile will allow you to package the compile and distribute to any other computer.
What are you trying to accomplish when you say that you want to pre-compile the application?