Do not throw exception if ProcessIdToSessionId() is failed.

Many security solutions forbid other program from accessing their own process. So if ProcessIdToSessionId() is failed, simply ignore it.

Signed-off-by: SeokYeon Hwang <caramis@gmail.com>

src/lib/platform/MSWindowsSession.cpp

@@ -69,10 +69,11 @@ CMSWindowsSession::isProcessInSession(const char* name, PHANDLE process = NULL)
 				entry.th32ProcessID, &processSessionId);
 
 			if (!pidToSidRet) {
+				// if we can not acquire session associated with a specified process,
+				// simply ignore it
 				LOG((CLOG_ERR "could not get session id for process id %i", entry.th32ProcessID));
-				throw XArch(new XArchEvalWindows());
 			}
-
+			else {
 				// only pay attention to processes in the active session
 				if (processSessionId == m_activeSessionId) {
 
@@ -85,6 +86,8 @@ CMSWindowsSession::isProcessInSession(const char* name, PHANDLE process = NULL)
 				}
 			}
 
+		}
+
 		// now move on to the next entry (if we're not at the end)
 		gotEntry = Process32Next(snapshot, &entry);
 		if (!gotEntry) {