--- a/src/os/win32/ngx_process.h
+++ b/src/os/win32/ngx_process.h
@@ -2,7 +2,29 @@
 #define _NGX_PROCESS_H_INCLUDED_
 
 
-#define ngx_getpid  GetCurrentProcessId
+typedef DWORD        ngx_pid_t;
+
+#define ngx_getpid   GetCurrentProcessId
+#define ngx_log_pid  ngx_pid
+
+
+typedef struct {
+    char         *path;
+    char         *name;
+    char *const  *argv;
+    char *const  *envp;
+} ngx_exec_ctx_t;
+
+
+#define NGX_PROCESS_SINGLE   0
+#define NGX_PROCESS_MASTER   1
+#define NGX_PROCESS_WORKER   2
+
+
+ngx_pid_t ngx_exec(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
+
+
+extern ngx_pid_t     ngx_pid;
 
 
 #endif /* _NGX_PROCESS_H_INCLUDED_ */