patch 7.4.1975
Problem:    On MS-Windows large files (> 2Gbyte) cause problems.
Solution:   Use "off_T" instead of "off_t".  Use "stat_T" instead of "struct
            stat".  Use 64 bit system functions if available.  (Ken Takata)
diff --git a/src/proto/os_mswin.pro b/src/proto/os_mswin.pro
index d25c174..5cdb4af 100644
--- a/src/proto/os_mswin.pro
+++ b/src/proto/os_mswin.pro
@@ -9,7 +9,7 @@
 int mch_FullName(char_u *fname, char_u *buf, int len, int force);
 int mch_isFullName(char_u *fname);
 void slash_adjust(char_u *p);
-int vim_stat(const char *name, struct stat *stp);
+int vim_stat(const char *name, stat_T *stp);
 void mch_settmode(int tmode);
 int mch_get_shellsize(void);
 void mch_set_shellsize(void);