今天遇到一個怪怪的問題。如果你也遇到了可以一試。搞了半天，搞定了:)
在Vista下遇到 無法啟動secondary logon服務 且彈出的提示錯誤是:系統找不到指定的文件。 可以使用如下方法來修復它。
1，從可以正常運行的Vista系統中導出 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\seclogon 的所有鍵值。
2,然後導入到有問題的系統上。然後啟動改服務就可以了。
如還出現問題，請檢查 "@%SystemRoot%\\system32\\seclogon.dll 文件是否存在。
如果你找不到正常運行的Vista系統，可以把下面的代碼復制到記事本中，然後修改後綴名為.reg 雙擊導入即可。 本來想添加成附件的，可可憐的百度空間不讓。沒辦法。自己動手豐衣足食....
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\seclogon]
"DisplayName"="@%SystemRoot%\\system32\\seclogon.dll,-7001"
"ImagePath"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,73,00,\
79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,76,00,63,00,68,00,6f,\
00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,6b,00,20,00,6e,00,65,00,\
74,00,73,00,76,00,63,00,73,00,00,00
"Description"="@%SystemRoot%\\system32\\seclogon.dll,-7000"
"ObjectName"="LocalSystem"
"ErrorControl"=dword:00000001
"Start"=dword:00000002
"Type"=dword:00000020
"RequiredPrivileges"=hex(7):53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,00,76,\
00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,73,00,74,00,\
6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,\
00,53,00,65,00,42,00,61,00,63,00,6b,00,75,00,70,00,50,00,72,00,69,00,76,00,\
69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,41,00,73,00,73,00,69,00,67,\
00,6e,00,50,00,72,00,69,00,6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,\
6e,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,\
00,49,00,6e,00,63,00,72,00,65,00,61,00,73,00,65,00,51,00,75,00,6f,00,74,00,\
61,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,\
00,49,00,6d,00,70,00,65,00,72,00,73,00,6f,00,6e,00,61,00,74,00,65,00,50,00,\
72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,00,00
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\
00,01,00,00,00,c0,d4,01,00,01,00,00,00,e0,93,04,00,00,00,00,00,00,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\seclogon\Parameters]
"ServiceDll"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,73,\
00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,65,00,63,00,6c,00,\
6f,00,67,00,6f,00,6e,00,2e,00,64,00,6c,00,6c,00,00,00
"ServiceMain"="SvcEntry_Seclogon"
"ServiceDllUnloadOnStop"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\seclogon\Enum]
"0"="Root\\LEGACY_SECLOGON\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001
