A mi, BVE4 me da el siguiente error (En windows 98-2):
_______________________________________________________________________
See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.ArgumentException: Invalid or unsupported code page type.
   at System.Text.CodePageEncoding.GetCPMaxCharSizeNative(Int32 codePage)
   at System.Text.CodePageEncoding..ctor(Int32 codepage)
   at System.Text.Encoding.GetEncodingRare(Int32 codepage)
   at System.Text.Encoding.GetEncoding(Int32 codepage)
   at Bve.CMainForm.readRoute()
   at Bve.CMainForm.openDoc(Boolean onlyVehicle, Boolean reload)
   at Bve.CMainForm.mnuFileOpen_Click(Object sender, EventArgs e)
   at System.Windows.Forms.MenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.MenuItemData.Execute()
   at System.Windows.Forms.Command.Invoke()
   at System.Windows.Forms.Control.WmCommand(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/windows/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
Bve
    Assembly Version: 4.1.1843.850
    Win32 Version: 4.1.1843.850
    CodeBase: file:///C:/PROGRAM%20FILES/MACKOY/BVE4/BVE.EXE
----------------------------------------
System.Windows.Forms
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/windows/assembly/gac/system.windows.forms/1.0.5000.0__b77a5c561934e089/system.windows.forms.dll
----------------------------------------
System
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
Interop.DxVBLib
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/PROGRAM%20FILES/MACKOY/BVE4/Interop.DxVBLib.DLL
----------------------------------------
System.Drawing
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/windows/assembly/gac/system.drawing/1.0.5000.0__b03f5f7f11d50a3a/system.drawing.dll
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 7.0.5000.0
    Win32 Version: 7.10.3052.4
    CodeBase: file:///c:/windows/assembly/gac/microsoft.visualbasic/7.0.5000.0__b03f5f7f11d50a3a/microsoft.visualbasic.dll
----------------------------------------
Accessibility
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/windows/assembly/gac/accessibility/1.0.5000.0__b03f5f7f11d50a3a/accessibility.dll
----------------------------------------
AxInterop.MSCommLib
    Assembly Version: 1.1.0.0
    Win32 Version: 1.1.0.0
    CodeBase: file:///C:/PROGRAM%20FILES/MACKOY/BVE4/AxInterop.MSCommLib.DLL
----------------------------------------
Interop.MSCommLib
    Assembly Version: 1.1.0.0
    Win32 Version: 1.1.0.0
    CodeBase: file:///C:/PROGRAM%20FILES/MACKOY/BVE4/Interop.MSCommLib.DLL
----------------------------------------
Parse
    Assembly Version: 1.0.1653.10330
    Win32 Version: 1.0.1653.10330
    CodeBase: file:///C:/PROGRAM%20FILES/MACKOY/BVE4/Parse.DLL
----------------------------------------
************** JIT Debugging **************
To enable just in time (JIT) debugging, the config file for this
application or machine (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 machine
rather than being handled by this dialog.
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Pero lo probe en XP y anda.. 
 
   
 
Saludos
fer_gt22