VB Compiler

Guys how to make simple compiler ? Any hints pls.

Look into the CodeDomProvider class:
CodeDomProvider Class (System.CodeDom.Compiler)

It will allow you to compile VB.NET and C# code.

Imports System.CodeDom.Compiler
'
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim code As String = My.Computer.FileSystem.ReadAllText("C:\test2.txt")
'MsgBox(code)
Dim codedom As CodeDomProvider = CodeDomProvider.CreateProvider("vb")
Dim cparams As CompilerParameters = New CompilerParameters
cparams.GenerateExecutable = True 'false = dll
cparams.OutputAssembly = "C:\test.exe"
Dim results As CompilerResults = codedom.CompileAssemblyFromSource(cparams, code)
If results.Errors.Count > 0 Then
For Each var In results.Errors
MsgBox(var.ToString)
Next
End If
Process.Start("C:\test.exe")
End Sub
End Class