MSSQL "A network-related or instance-specific error" and IIS application pool

Hello! I've got web application created for MSSQL and IIS. There are two directories in this application - Scripts and WebSite. In Script there is file CreateDb.sql. I need to run it so that it can create database. I changed in that file one line into this: CREATE DATABASE [NameOfDb] ON PRIMARY ( NAME = N'NameOfDb', FILENAME = N'F:\Inetpub\wwwroot\htdocs\WebSite\NameOfDb.mdf' and the other part for the same directory but other filename (NameOfDb.ldf). I store the file CreateDb.sql in the directory F:\Dane\NameOfProj\Scripts. I copied WebSite directory here F:\Inetpub\wwwroot\htdocs\WebSite. [b]:: MSSQL :: I installed Microsoft SQL Server 2008 and run in Command Prompt: C:\Documents and Settings\useruser>osql -Usa -Ppassword -i "F:\Data\MyApplication\Scripts\CreateDb.sql" [SQL Server Native Client 10.0]Named Pipes Provider: Could not open a connection to SQL Server [2]. [SQL Server Native Client 10.0]Login time ...