of.lpstrTitle = "Select Private Key File";
of.Flags = OFN_ALLOWMULTISELECT | OFN_EXPLORER;
if (request_file(keypath, &of, TRUE, FALSE)) {
of.lpstrTitle = "Select Private Key File";
of.Flags = OFN_ALLOWMULTISELECT | OFN_EXPLORER;
if (request_file(keypath, &of, TRUE, FALSE)) {