win7注册打印机服务的方法，print spooler服务缺失的解决办法
最近需要用到虚拟打印机，但发现print spooler服务根本没有，当然没法添加打印机。
试了好几种办法，终于解决了：将下面的代码放进文本，格式为*.reg，例如spooler.reg，然后双击这个文件，就能注册打印机服务，重启计算机后，再服务里就可以看见print spooler，设置启动为：‘自动’，启动就OK了
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Spooler]
"DependOnService"=hex(7):52,00,50,00,43,00,53,00,53,00,00,00,00,00
"Description"="将文件加载到内存中以便迟后打印。"
"DisplayName"="Print Spooler"
"ErrorControl"=dword:00000001
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,e8,47,0c,\
00,01,00,00,00,60,ea,00,00,01,00,00,00,60,ea,00,00,00,00,00,00,00,00,00,00
"Group"="SpoolerGroup"
"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,\
74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,\
00,70,00,6f,00,6f,00,6c,00,73,00,76,00,2e,00,65,00,78,00,65,00,00,00
"ObjectName"="LocalSystem"
"Start"=dword:00000002
"Type"=dword:00000110
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Spooler\Parameters]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Spooler\Performance]
"Close"="PerfClose"
"Collect"="PerfCollect"
"Collect Timeout"=dword:000007d0
"Library"="winspool.drv"
"Object List"="1450"
"Open"="PerfOpen"
"Open Timeout"=dword:00000fa0
"WbemAdapFileSignature"=hex:b6,69,32,f1,cc,60,91,0e,38,f9,a0,87,63,c5,0b,d8
"WbemAdapFileTime"=hex:60,a8,de,cd,5a,2f,c4,01
"WbemAdapFileSize"=dword:00020200
"WbemAdapStatus"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Spooler\Security]
"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\
00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\
00,00,02,00,60,00,04,00,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,\
05,0b,00,00,00,00,00,18,00,9d,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,\
23,02,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,20,\
02,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,05,12,00,00,00,01,01,\
00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Spooler\Enum]
"0"="Root\\LEGACY_SPOOLER\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001