FTP Download And Stack Overflow

I have a worker thread which I start with AfxBeginThread. This threads tries to download a file from FTP but when it hits the GetFile function it causes a stack overflow and Visual Studio disappears. The code (abridged) is below:

Code:

		ftpConn = session.GetFtpConnection("*****","*****","*****"); 
		
		if(ftpConn != NULL) 
		{ 
			if(ftpConn->SetCurrentDirectory("/") != 0) 
			{ 
				if(ftpConn->GetFile(strRemoteFile, strLocalFile, FALSE) == 0) 
				{
				}
			}

			ftpConn->Close();
			delete ftpConn;
		}

		session.Close();

Any ideas what is causing it?

I seem to have fixed this. I was creating the thread in the OnInitDialog of my CDialog derived class. Doing so causes a stack overflow in the thread. However, if I start the thread after OnInitDialog has finished, there is no stack overflow.

I am a little surprised that I can't start it in OnInitDialog (I would expect to be able to) but at least it is fixed.