4 size_t environment_length(TCHAR *);
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5 TCHAR *copy_environment_block(TCHAR *);
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6 TCHAR *useful_environment(TCHAR *);
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7 TCHAR *expand_environment_string(TCHAR *);
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8 int set_environment_block(TCHAR *);
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9 int clear_environment();
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10 int duplicate_environment(TCHAR *);
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11 int test_environment(TCHAR *);
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12 void duplicate_environment_strings(TCHAR *);
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13 TCHAR *copy_environment();
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14 int append_to_environment_block(TCHAR *, unsigned long, TCHAR *, TCHAR **, unsigned long *);
\r
15 int remove_from_environment_block(TCHAR *, unsigned long, TCHAR *, TCHAR **, unsigned long *);
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