Problems wth visual Studio Isolated

Hi, 
    I have a problem, i will describe my escenarios:

I have a custom debugger in native code, that is called in by my project , it loads fine when i work on an integrated mode, the piece of code where im calling the debugger is this:

try
{ 
        _debugger = serviceProvider.GetService(typeof(IVsDebugger)) as IVsDebugger; 
        if (_debugger == null) 
        { 
                throw new InvalidOperationException(); 
        } 
        ErrorHandler.ThrowOnFailure(_debugger.LaunchDebugTargets(1, ptr));
}
catch (COMException e)
{ 
        Trace.WriteLine("Exception : " + e.Message);
}
finally
{ 
        if (ptr != IntPtr.Zero)
{


The blue line is where i call my custom debugger and as i already mention, it works form integrated mode, but for isolated mode it throws me an exception that is catched in the red line, the execpcion that is throw is the following:

Unable to Start Program 'C:\Jherzon\JherDebug.exe'
The debugger is not properly installed. Cannot debug the requested type of code. Run setup to install or repair the debbugger'

By this message i assume that the atl com server is not properly registered, but why does it runs under integrated mode,

Any idea,, what do i have to review?