This was my error:



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

************** Exception Text **************
System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
at ..
(String , String , Int32 , Boolean )
at ..(Boolean )
at ..(Int32 )
at ..(Boolean )
at ..(Object , EventArgs )
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.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)


************** 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
----------------------------------------
vlite
Assembly Version: 1.2.0.2
Win32 Version: 1.2.0.2
CodeBase: file:///C:/Program%20Files/vLite/vLite.exe
----------------------------------------
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
----------------------------------------
vLite
Assembly Version: 1.2.0.2
Win32 Version: 1.2.0.2
CodeBase: file:///C:/Program%20Files/vLite/vLite.exe
----------------------------------------
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.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
----------------------------------------
MCDBNET2
Assembly Version: 1.3.3.33894
Win32 Version: 1.33.0.133
CodeBase: file:///C:/Program%20Files/vLite/MCDBNET2.DLL
----------------------------------------
msvcm80
Assembly Version: 8.0.50727.922
Win32 Version: 8.00.50727.922
CodeBase: file:///C:/WINDOWS/WinSxS/x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.922_x-ww_6c0aa506/msvcm80.dll
----------------------------------------
vhelper
Assembly Version: 1.0.3166.20582
Win32 Version: 1, 0, 0, 1
CodeBase: file:///C:/Program%20Files/vLite/vhelper.DLL
----------------------------------------
msvcm90
Assembly Version: 9.0.30729.1
Win32 Version: 9.00.30729.1
CodeBase: file:///C:/Program%20Files/vLite/msvcm90.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.

nvm... i got it.
search is my friend !

http://www.msfn.org/board/Unhandled-except...00-t124476.html