I had a problem in the Try It Out exercise on chapter 11. After adding the PlanetWrox.mdf and PlanetWrox_log.ldf files to App_Date folder, when I double clicked the database it took several seconds and then I saw the following message:
I've been through all the Try It Out exercised and the problem was solved. However, I solved the problem only after adding the "Network Service" account, while ASPNET account wasn't even there (After doing the whole aspnet_regiis -i procedure (I'm using XP)). Moreover, I couldn't see the "IUSR" / "IUSR_MachineName" accounts in the "Select Users or Groups" window. My question is - Why is it like this, and if there's any chance for future problems manipulating the DB (later in the book) because of that?