run SQL script through SQLCommand

[Leanne]

I am doing customization for Microsoft Pos. I am working on
installation package now. I added some new tables and stored
procuedures and generated SQL Script for that. During the installation
process, after user entered the server name and database name, how to
open the script file (*.sql) and run that to update database? So they
don't have to open Query Analizer to run it. The idea is to get
everything done during the installation process.
My problem is, the generated SQL script
contains a lot " if exist...then drop...Go..." etc, so when I use

ls=My.Computer.FileSystem.ReadAllText(Dialog1.File Name)
sqlCommand.CommandText = ls
sqlCommand.ExecuteNonQuery()

I got many syntex error. (such as "Go" should be the last). I set the
command type to "text". I don't know what method I should use to read
string from the file and how should I tell sqlCommand that this is SQL
Script and not normal SQL Statement.
If I start Query analyzer, then open the sql file, I can run that
without any problem.
Now what I want is to open the sql file from VB, and then execute that
throuth sqlCommand. Anyone got an idea? Some code sample maybe?

Thanks
Leanne