On Windows fcgid crashes apache when apache do a graceful restart (httpd -k restart). Here is a patch that should fix that. This patch in inspired from Tom Dovovan.

Index: modules/fcgid/fcgid_pm_main.c
===================================================================
--- modules/fcgid/fcgid_pm_main.c    (revision 1037552)
+++ modules/fcgid/fcgid_pm_main.c    (working copy)
@@ -375,7 +375,9 @@
 proc->diewhy = FCGID_DIE_SHUTDOWN;
 proc_print_exit_info(proc, exitcode, exitwhy,
 main_server);
-        apr_pool_destroy(proc->proc_pool);
+        #ifndef Win32
+            apr_pool_destroy(proc->proc_pool);
+        #endif
 proc->proc_pool = NULL;
 return 1;
 }
Index: modules/fcgid/fcgid_pm_win.c
===================================================================
--- modules/fcgid/fcgid_pm_win.c    (revision 1037552)
+++ modules/fcgid/fcgid_pm_win.c    (working copy)
@@ -123,7 +123,9 @@
 "mod_fcgid: can't create wake up thread");
 exit(1);
 }
-
+    apr_pool_cleanup_register(pconf, main_server,
+                              procmgr_stop_procmgr, apr_pool_cleanup_null);
+                              
 return APR_SUCCESS;
 }

@@ -249,8 +251,6 @@
 apr_status_t
 procmgr_child_init(server_rec * main_server, apr_pool_t * pchild)
 {
-    apr_pool_cleanup_register(pchild, main_server,
-                              procmgr_stop_procmgr, apr_pool_cleanup_null);
 return APR_SUCCESS;
 }

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