diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 11d5629..6cada65 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -113,7 +113,7 @@
 #	Processor Version: CPUNR=[i386, i486, i586, i686, pentium4] (default is
 #	i386)
 #
-#	Version Support: WINVER=[0x0400, 0x0500] (default is 0x0400)
+#	Version Support: WINVER=[0x0400, 0x0500] (default is 0x0500)
 #
 #	Debug version: DEBUG=yes
 #	Mapfile: MAP=[no, yes or lines] (default is yes)
@@ -370,9 +370,8 @@
 !endif
 
 ### Set the default $(WINVER) to make it work with VC++7.0 (VS.NET)
-#  When set to 0x0500 ":browse" stops working.
 !ifndef WINVER
-WINVER = 0x0400
+WINVER = 0x0500
 !endif
 
 # If you have a fixed directory for $VIM or $VIMRUNTIME, other than the normal
diff --git a/src/eval.c b/src/eval.c
index 30d5684..ece87de 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -7720,8 +7720,7 @@
     static void
 job_free(job_T *job)
 {
-    /* TODO: free any handles */
-
+    mch_clear_job(job);
     vim_free(job);
 }
 
@@ -14369,9 +14368,11 @@
 		s = vim_strsave_shellescape(s, FALSE, TRUE);
 		if (s == NULL)
 		    goto theend;
+		ga_concat(&ga, s);
+		vim_free(s);
 	    }
-	    ga_concat(&ga, s);
-	    vim_free(s);
+	    else
+		ga_concat(&ga, s);
 	    if (li->li_next != NULL)
 		ga_append(&ga, ' ');
 #endif
@@ -21623,7 +21624,8 @@
 			    "process %ld %s", (long)job->jv_pid, status);
 # elif defined(WIN32)
 		vim_snprintf((char *)buf, NUMBUFLEN,
-			    "process %ld %s", (long)job->jv_pi.dwProcessId,
+			    "process %ld %s",
+			    (long)job->jv_proc_info.dwProcessId,
 			    status);
 # else
 		/* fall-back */
diff --git a/src/os_unix.c b/src/os_unix.c
index 17bb322..83ae75f 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -5092,6 +5092,12 @@
 	job->jv_status = JOB_ENDED;
 	return "dead";
     }
+    if (WIFSIGNALED(status))
+    {
+	job->jv_exitval = -1;
+	job->jv_status = JOB_ENDED;
+	return "dead";
+    }
     return "run";
 }
 
@@ -5099,6 +5105,7 @@
 mch_stop_job(job_T *job, char_u *how)
 {
     int sig = -1;
+    pid_t job_pid;
 
     if (STRCMP(how, "hup") == 0)
 	sig = SIGHUP;
@@ -5112,10 +5119,30 @@
 	sig = atoi((char *)how);
     else
 	return FAIL;
+
     /* TODO: have an option to only kill the process, not the group? */
-    kill(-job->jv_pid, sig);
+    job_pid = job->jv_pid;
+    if (job_pid == getpgid(job_pid))
+	job_pid = -job_pid;
+
+    kill(job_pid, sig);
+
     return OK;
 }
+
+/*
+ * Clear the data related to "job".
+ */
+    void
+mch_clear_job(job_T *job)
+{
+    /* call waitpid because child process may become zombie */
+# ifdef __NeXT__
+    wait4(job->jv_pid, NULL, WNOHANG, (struct rusage *)0);
+# else
+    waitpid(job->jv_pid, NULL, WNOHANG);
+# endif
+}
 #endif
 
 /*
diff --git a/src/os_win32.c b/src/os_win32.c
index 5841d13..cc5fc3d 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -5038,19 +5038,44 @@
 {
     STARTUPINFO		si;
     PROCESS_INFORMATION	pi;
+    HANDLE		jo;
 
+    jo = CreateJobObject(NULL, NULL);
+    if (jo == NULL)
+    {
+	job->jv_status = JOB_FAILED;
+	return;
+    }
+
+    ZeroMemory(&pi, sizeof(pi));
     ZeroMemory(&si, sizeof(si));
     si.cb = sizeof(si);
+    si.dwFlags = STARTF_USESHOWWINDOW;
+    si.wShowWindow = SW_HIDE;
 
     if (!vim_create_process(cmd, FALSE,
+	    CREATE_SUSPENDED |
 	    CREATE_DEFAULT_ERROR_MODE |
 	    CREATE_NEW_PROCESS_GROUP |
-	    CREATE_NO_WINDOW,
+	    CREATE_NEW_CONSOLE,
 	    &si, &pi))
+    {
+	CloseHandle(jo);
 	job->jv_status = JOB_FAILED;
+    }
     else
     {
-	job->jv_pi = pi;
+	if (!AssignProcessToJobObject(jo, pi.hProcess))
+	{
+	    /* if failing, switch the way to terminate
+	     * process with TerminateProcess. */
+	    CloseHandle(jo);
+	    jo = NULL;
+	}
+	ResumeThread(pi.hThread);
+	CloseHandle(job->jv_proc_info.hThread);
+	job->jv_proc_info = pi;
+	job->jv_job_object = jo;
 	job->jv_status = JOB_STARTED;
     }
 }
@@ -5060,12 +5085,10 @@
 {
     DWORD dwExitCode = 0;
 
-    if (!GetExitCodeProcess(job->jv_pi.hProcess, &dwExitCode))
-	return "dead";
-    if (dwExitCode != STILL_ACTIVE)
+    if (!GetExitCodeProcess(job->jv_proc_info.hProcess, &dwExitCode)
+	    || dwExitCode != STILL_ACTIVE)
     {
-	CloseHandle(job->jv_pi.hProcess);
-	CloseHandle(job->jv_pi.hThread);
+	job->jv_status = JOB_ENDED;
 	return "dead";
     }
     return "run";
@@ -5074,14 +5097,39 @@
     int
 mch_stop_job(job_T *job, char_u *how)
 {
+    int ret = 0;
+    int ctrl_c = STRCMP(how, "int") == 0;
+
     if (STRCMP(how, "kill") == 0)
-	TerminateProcess(job->jv_pi.hProcess, 0);
-    else
-	return GenerateConsoleCtrlEvent(
-	    STRCMP(how, "hup") == 0 ?
-		    CTRL_BREAK_EVENT : CTRL_C_EVENT,
-		job->jv_pi.dwProcessId) ? OK : FAIL;
-    return OK;
+    {
+	if (job->jv_job_object != NULL)
+	    return TerminateJobObject(job->jv_job_object, 0) ? OK : FAIL;
+	else
+	    return TerminateProcess(job->jv_proc_info.hProcess, 0) ? OK : FAIL;
+    }
+
+    if (!AttachConsole(job->jv_proc_info.dwProcessId))
+	return FAIL;
+    ret = GenerateConsoleCtrlEvent(
+	    ctrl_c ? CTRL_C_EVENT : CTRL_BREAK_EVENT,
+	    job->jv_proc_info.dwProcessId)
+	? OK : FAIL;
+    FreeConsole();
+    return ret;
+}
+
+/*
+ * Clear the data related to "job".
+ */
+    void
+mch_clear_job(job_T *job)
+{
+    if (job->jv_status != JOB_FAILED)
+    {
+	if (job->jv_job_object != NULL)
+	    CloseHandle(job->jv_job_object);
+	CloseHandle(job->jv_proc_info.hProcess);
+    }
 }
 #endif
 
diff --git a/src/proto/os_unix.pro b/src/proto/os_unix.pro
index bc250c8..c97f7fe 100644
--- a/src/proto/os_unix.pro
+++ b/src/proto/os_unix.pro
@@ -60,6 +60,7 @@
 void mch_start_job(char **argv, job_T *job);
 char *mch_job_status(job_T *job);
 int mch_stop_job(job_T *job, char_u *how);
+void mch_clear_job(job_T *job);
 void mch_breakcheck(void);
 int mch_expandpath(garray_T *gap, char_u *path, int flags);
 int mch_expand_wildcards(int num_pat, char_u **pat, int *num_file, char_u ***file, int flags);
diff --git a/src/proto/os_win32.pro b/src/proto/os_win32.pro
index 2128807..2fa6e10 100644
--- a/src/proto/os_win32.pro
+++ b/src/proto/os_win32.pro
@@ -43,6 +43,7 @@
 void mch_start_job(char *cmd, job_T *job);
 char *mch_job_status(job_T *job);
 int mch_stop_job(job_T *job, char_u *how);
+void mch_clear_job(job_T *job);
 void mch_set_normal_colors(void);
 void mch_write(char_u *s, int len);
 void mch_delay(long msec, int ignoreinput);
diff --git a/src/structs.h b/src/structs.h
index 1ce98d0..8ea43d3 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1249,7 +1249,8 @@
     int		jv_exitval;
 #endif
 #ifdef WIN32
-    PROCESS_INFORMATION	jv_pi;
+    PROCESS_INFORMATION	jv_proc_info;
+    HANDLE		jv_job_object;
 #endif
     jobstatus_T	jv_status;
 
diff --git a/src/version.c b/src/version.c
index b73ad02..7a99caa 100644
--- a/src/version.c
+++ b/src/version.c
@@ -748,6 +748,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1306,
+/**/
     1305,
 /**/
     1304,