From b4b9ed3504858f2519821e7453be0b25b3493a0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A9=20van=20Geldorp?= <ge@gse.nl>
Date: Fri, 11 Nov 2005 21:39:57 +0000
Subject: [PATCH] The GroupOrder registry value should start with a ULONG
 containing the number of entries following it.

svn path=/trunk/; revision=19150
---
 reactos/lib/setupapi/install.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/reactos/lib/setupapi/install.c b/reactos/lib/setupapi/install.c
index bdd13cc3097..8dcacca125d 100644
--- a/reactos/lib/setupapi/install.c
+++ b/reactos/lib/setupapi/install.c
@@ -1212,7 +1212,7 @@ BOOL WINAPI SetupInstallServicesFromInfSectionExW( HINF hinf, PCWSTR sectionname
             }
             rc = RegQueryValueExW(hGroupOrderListKey, lpLoadOrderGroup, NULL, &dwRegType, NULL, &bufferSize);
             if (rc == ERROR_FILE_NOT_FOUND)
-                bufferSize = 0;
+                bufferSize = sizeof(DWORD);
             else if (rc != ERROR_SUCCESS)
             {
                 SetLastError(rc);
@@ -1246,10 +1246,17 @@ BOOL WINAPI SetupInstallServicesFromInfSectionExW( HINF hinf, PCWSTR sectionname
                     goto cleanup;
                 }
             }
-            if (flags & SPSVCINST_TAGTOFRONT)
-                GroupOrder[0] = tagId;
             else
+            {
+                GroupOrder[0] = 0;
+            }
+            if (flags & SPSVCINST_TAGTOFRONT)
+                GroupOrder[1] = tagId;
+            else
+            {
+                GroupOrder[0]++;
                 GroupOrder[bufferSize / sizeof(DWORD)] = tagId;
+            }
 
             rc = RegSetValueExW(
                 hGroupOrderListKey,