GLOBAL bool Zip_InitConn PARAMS(( CONN_ID Idx ));
-GLOBAL bool Zip_Buffer PARAMS(( CONN_ID Idx, char *Data, size_t Len ));
+GLOBAL bool Zip_Buffer PARAMS(( CONN_ID Idx, const char *Data, size_t Len ));
GLOBAL bool Zip_Flush PARAMS(( CONN_ID Idx ));
GLOBAL bool Unzip_Buffer PARAMS(( CONN_ID Idx ));