OutputDebugString
Dbgview
::OutputDebugString(_T("Floating point (%%e, %%f, %%g, and %%G) is not supported by the WTL::CString class."));                        OutputDebugString(("Handles " + IntToString(m_handles.size()) + ", Woke up by " + IntToString(result-WAIT_OBJECT_0) + ", Busied for " + IntToString(timeBeforeWait-lastTime) + " us, Waited for " + IntToString(timeAfterWait-timeBeforeWait) + " us, max " + IntToString(milliseconds) + "ms\n").c_str());