[hpoussin] 19186: Try to open driver registry key before creating it.

Try to open driver registry key before creating it.
Fixes bug 977
Modified: trunk/reactos/lib/netcfgx/netcfgx.c
  _____  

Modified: trunk/reactos/lib/netcfgx/netcfgx.c
--- trunk/reactos/lib/netcfgx/netcfgx.c	2005-11-12 20:28:32 UTC (rev
19185)
+++ trunk/reactos/lib/netcfgx/netcfgx.c	2005-11-12 21:11:09 UTC (rev
19186)
@@ -210,7 +210,13 @@

 	hKey = INVALID_HANDLE_VALUE;
 
 	/* Write 'Linkage' key in hardware key */
-	hKey = SetupDiCreateDevRegKeyW(DeviceInfoSet, DeviceInfoData,
DICS_FLAG_GLOBAL, 0, DIREG_DRV, NULL, NULL);
+#if _WIN32_WINNT >= 0x502
+	hKey = SetupDiOpenDevRegKey(DeviceInfoSet, DeviceInfoData,
DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_READ | KEY_WRITE);
+#else
+	hKey = SetupDiOpenDevRegKey(DeviceInfoSet, DeviceInfoData,
DICS_FLAG_GLOBAL, 0, DIREG_DRV, KEY_ALL_ACCESS);
+#endif
+	if (hKey == INVALID_HANDLE_VALUE && GetLastError() ==
ERROR_FILE_NOT_FOUND)
+		hKey = SetupDiCreateDevRegKeyW(DeviceInfoSet,
DeviceInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DRV, NULL, NULL);
 	if (hKey == INVALID_HANDLE_VALUE)
 	{
 		rc = GetLastError();