added exe cpp file to generate standalone

.gitignore

@@ -45,3 +45,5 @@ Temporary Items
 *.pyc
 __pycache__
 ips.csv
+/releases
+/standalone/DHCPGui.exe

standalone/DHCPGui.cpp

@@ -0,0 +1,44 @@
+
+// based on https://msdn.microsoft.com/en-us/library/ms682425%28VS.85%29.aspx
+
+#include <windows.h>
+#include <stdio.h>
+#include <tchar.h>
+
+int _tmain( int argc, TCHAR *argv[] )
+{
+    STARTUPINFO si;
+    PROCESS_INFORMATION pi;
+    TCHAR command[] = "\"Portable Python 3\\App\\pythonw.exe\" \"dhcpgui.pyw\"";
+    TCHAR directory[] = "server";
+
+    ZeroMemory( &si, sizeof(si) );
+    si.cb = sizeof(si);
+    ZeroMemory( &pi, sizeof(pi) );
+
+    // Start the child process. 
+    if( !CreateProcess( NULL,   // No module name (use command line)
+        command,        // Command line
+        NULL,           // Process handle not inheritable
+        NULL,           // Thread handle not inheritable
+        FALSE,          // Set handle inheritance to FALSE
+        0,              // No creation flags
+        NULL,           // Use parent's environment block
+        directory,           // Use parent's starting directory 
+        &si,            // Pointer to STARTUPINFO structure
+        &pi )           // Pointer to PROCESS_INFORMATION structure
+    ) 
+    {
+        printf( "CreateProcess failed (%d).\n", GetLastError() );
+        return 1;
+    }
+/*
+    // Wait until child process exits.
+    WaitForSingleObject( pi.hProcess, INFINITE );
+
+    // Close process and thread handles. 
+    CloseHandle( pi.hProcess );
+    CloseHandle( pi.hThread );
+*/
+    return 0;
+}