我的应用程序是否需要.NET框架3.5？

Question

我正在使用Visual Basic 2008 Express Edition，现在正在创建一个文本编辑器。它在我的系统上运行的很好，但是当我试图给我的朋友的系统上运行它，我得到这个错误：

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box. 

************** Exception Text ************** 
System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified. 
File name: 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' 
    at WindowsApplication2.frmeditor.getEnglish(String StrSearch) 
    at WindowsApplication2.frmeditor.EeditorCMS_Opening(Object sender, CancelEventArgs e) 
    at System.Windows.Forms.ToolStripDropDown.OnOpening(CancelEventArgs e) 
    at System.Windows.Forms.ToolStripDropDown.SetVisibleCore(Boolean visible) 
    at System.Windows.Forms.ContextMenuStrip.SetVisibleCore(Boolean visible) 
    at System.Windows.Forms.ToolStripDropDown.Show(Control control, Point position) 
    at System.Windows.Forms.ContextMenuStrip.ShowInternal(Control source, Point location, Boolean isKeyboardActivated) 
    at System.Windows.Forms.Control.WmContextMenu(Message& m, Control sourceControl) 
    at System.Windows.Forms.Control.WmContextMenu(Message& m) 
    at System.Windows.Forms.Control.WndProc(Message& m) 
    at System.Windows.Forms.TextBoxBase.WndProc(Message& m) 
    at System.Windows.Forms.RichTextBox.WndProc(Message& m) 
    at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) 
    at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) 
    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) 

WRN: Assembly binding logging is turned OFF. 
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. 
Note: There is some performance penalty associated with assembly bind failure logging. 
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. 



************** Loaded Assemblies ************** 
mscorlib 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll 
---------------------------------------- 
UrduEditor 
    Assembly Version: 1.0.0.0 
    Win32 Version: 1.0.0.0 
    CodeBase: file:///C:/Documents%20and%20Settings/M%20Bilal/Desktop/New%20folder/UrduEditor.exe 
---------------------------------------- 
Microsoft.VisualBasic 
    Assembly Version: 8.0.0.0 
    Win32 Version: 8.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Microsoft.VisualBasic/8.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll 
---------------------------------------- 
System.Windows.Forms 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll 
---------------------------------------- 
System 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll 
---------------------------------------- 
System.Drawing 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll 
---------------------------------------- 
System.Runtime.Remoting 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Runtime.Remoting/2.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll 
---------------------------------------- 
System.Configuration 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll 
---------------------------------------- 
System.Xml 
    Assembly Version: 2.0.0.0 
    Win32 Version: 2.0.50727.42 (RTM.050727-4200) 
    CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll 
---------------------------------------- 
CollapsibleGroupBox 
    Assembly Version: 1.0.4486.29379 
    Win32 Version: 1.0.4486.29379 
    CodeBase: file:///C:/Documents%20and%20Settings/M%20Bilal/Desktop/New%20folder/CollapsibleGroupBox.DLL 
---------------------------------------- 
ExtendedRichTextBox 
    Assembly Version: 1.0.0.0 
    Win32 Version: 1.0.0.0 
    CodeBase: file:///C:/Documents%20and%20Settings/M%20Bilal/Desktop/New%20folder/ExtendedRichTextBox.DLL 
---------------------------------------- 
Interop.SpeechLib 
    Assembly Version: 5.4.0.0 
    Win32 Version: 5.4.0.0 
    CodeBase: file:///C:/Documents%20and%20Settings/M%20Bilal/Desktop/New%20folder/Interop.SpeechLib.DLL 
---------------------------------------- 

************** JIT Debugging ************** 
To enable just-in-time (JIT) debugging, the .config file for this 
application or computer (machine.config) must have the 
jitDebugging value set in the system.windows.forms section. 
The application must also be compiled with debugging 
enabled. 

For example: 

<configuration> 
    <system.windows.forms jitDebugging="true" /> 
</configuration> 

When JIT debugging is enabled, any unhandled exception 
will be sent to the JIT debugger registered on the computer 
rather than be handled by this dialog box. 

的操作系统是Windows XP  在.NET框架2.0。

我不想使用.NET Framework 3.5，因为它的大小大于200   MB。我的代码如下。这段代码是否真的需要.NET Framework 3.5？

Public Sub ClipboardEnglish(ByVal StrSearch As String) 
    If IO.File.Exists(Application.StartupPath & "\eng.txt") Then 
     If NotifyIcon1.Visible = True Then 
      Dim words() As String = IO.File.ReadAllLines(Application.StartupPath & "\eng.txt") 
      Dim startwiths() As String = (From word In words Where LCase(word).StartsWith(LCase(StrSearch & " ")) Select word).ToArray 
      For Each startwith In startwiths 
       Dim meanings() As String 
       startwith = Replace(LCase(startwith), LCase(StrSearch) & " ", "") 
       meanings = Replace(startwith & ",", ", ", ",").Split(New Char() {","c}) 
       For Each mean In meanings 
        If Not mean = " " AndAlso Not mean = "" Then 
         If mean.Length > 100 Then 
          mean = mean.Substring(0, 100) & "..." 
         End If 
         If Not TSMIurdu.DropDownItems.Count = TSEnglishcount.Text Then 
          TSMIurdu.DropDownItems.Add(mean) 
         End If 
        End If 
       Next 
      Next 
      If TSMIurdu.DropDownItems.Count > 0 Then 
       ContextMenuStrip1.Show(Cursor.Position) 
       ContextMenuStrip1.Show() 
      End If 
     End If 
    Else 
     MsgBox("انگریزی ڈکشنری دستیاب نہیں", MsgBoxStyle.Critical, "خرابی") 
    End If 
End Sub 

Answer 1

Win32 Version: 2.0.50727.42 (RTM.050727-4200)

修订42是原来的RTM版本.NET 2.0。 System.Core版本= 3.5.0.0在.NET 3.5之前不可用。你的朋友至少没有这个功能，因为他在的卓越持久性从来没有使用过Windows Update的。从他通常从Windows Update获得的.NET 3.0,3.5和3.5 SP1更新不足之处，自从修订版42以来，已经发布了许多稳定性和安全补丁。另一个是上周。永远不要接受他的机器上的任何可执行文件，他们可能有cooties。