4 TCHAR *copy_environment_block(TCHAR *);
\r
5 TCHAR *useful_environment(TCHAR *);
\r
6 TCHAR *expand_environment_string(TCHAR *);
\r
7 int set_environment_block(TCHAR *);
\r
8 int clear_environment();
\r
9 int duplicate_environment(TCHAR *);
\r
10 int test_environment(TCHAR *);
\r
11 void duplicate_environment_strings(TCHAR *);
\r
12 TCHAR *copy_environment();
\r