Windows 7 RC没有来，另外一个RC出现了——微软今天终于发放了Windows Vista SP2和Windows Server 2008 SP2的RC候选版，版本号6002.16670.090130(编译于1月30日)，不过暂时仅限Microsoft Connect测试用户。

微软也没有确认何时或是否会公开发布这个RC版本，只是建议普通用户耐心等到最终正式版再升级。

【注：此前曾有一个版本号6002.16659.090114-1728的Vista SP2 RC泄露出来，编译时间比今天的最新版早半个月，当时的测试结果喜忧参半。】

此次发放的Vista/Server 2008 SP2 RC版本非常丰富，既有独立安装包也有在线升级包，语言方面既有包含全部36种的完整版，也有仅提供英/德/法/日/西5种语言的精简版，架构方面则全面支持x86、x64和ia64，体积最小41MB，最大622MB。

具体如下(点击放大)：

作为一个升级服务包，Vista SP2的主要使命自然还是综合此前发布的所有系统更新补丁，比如单是热修复补丁(hotfix)就多达691个(参见文末附录)，当然还有大量重要的安全补丁。

新功能或新特性不是SP服务包的主要内容，但也是相当不少：

一、增加服务包清除工具Service Pack Clean-up(Compcln.exe)，可以永久性地删除RTM和SP1自带的旧版本文件，以释放硬盘空间。

二、硬件系统支持和增强：

1、支持VIA 64位处理器，增加了新的设备ID和厂商字符串。

2、集成无线功能包(Feature Pack for Wireless)，支持蓝牙2.1规范、Windows Connect Now(WCN) Wi-Fi配置等。

3、改进从休眠模式恢复后的Wi-Fi连接性能。

4、升级侧边栏RSS Gadget以提升性能和响应速度。

5、新增蓝光光盘刻录功能。

三、操作系统体验升级：

1、集成最新桌面搜索Windows Search 4.0。

2、改进电视内容保护地区的Windows媒体中心。

3、增加新的注册表键值，允许保存修改的最大TCP开放连接数，以改善应用程序兼容性。

四、服务器系统企业应用改进：

1、为Windows Server 2008集成Hyper-V虚拟环境，免费授权数量为标准版系统一个、企业版四个、数据中心版不限。

2、为WebDAV重定向增加更多认证选项，增强Office用户认证自行开发程序的弹性。

3、改进服务器和桌面的电源管理，并且可以通过组策略管理相关设定。

4、改进终端服务授权密钥的向下兼容性。Windows Server 2008的授权密钥从512字节变为了2048字节，导致旧版终端服务客户端无法正常使用，而Citrix应用程序的旧授权密钥可以在SP2下正常使用了。

五、独立安装包完善：

1、为Windows Vista和Windows Server 2008提供统一的单个安装包。

2、能够检测驱动程序不兼容性，或停止安装SP，或警告用户潜在风险。

3、如果可能的话提供更好的错误处理和详细的错误信息。

4、安装过程会记录在系统日志内，从而改进可管理性。

5、提供一个安全的安装体验。

当然，升级SP是一个大动作，肯定会带来负面影响。以下是微软公布的已知问题：

一、应用程序兼容性：

1、系统安全设置会错误地认为某些版本的特定安全软件不存在，包括Avira AntiVir 8.2.0.611以及更早版本、Trend Micro Internet Security v17更早版本。使用此类安全软件的用户应升级至最新版。

2、Security Innovation Holodeck 2.8.0(企业版)会意外退出。暂无解决方案。

二、IIS服务：

如果Web程序或者服务试图通过运行在应用程序池标识下的IIS 7.0远程访问活动目录服务接口(ADSI)，可能会失败。可以尝试运行在不同的标识下，如Network Service。

三、SQL Server 2008：

在Windows Server 2008标准版、企业版、数据中心版中，如果试图在故障转移群集上安装SQL Server 2008，将无法成功。详情和解决方案请参看这里。

最后，如果你感兴趣的话，下边这些就是Vista/Server 2008 SP2 RC集成的热修复补丁及其知识库文章链接：

http://support.microsoft.com/kb/950974
http://support.microsoft.com/kb/956841
http://support.microsoft.com/kb/957095
http://support.microsoft.com/kb/957097
http://support.microsoft.com/kb/958687
http://support.microsoft.com/kb/958623
http://support.microsoft.com/kb/958624
http://support.microsoft.com/kb/959349
http://support.microsoft.com/kb/925902
http://support.microsoft.com/kb/941693
http://support.microsoft.com/kb/950759
http://support.microsoft.com/kb/951066
http://support.microsoft.com/kb/956802
http://support.microsoft.com/kb/954430
http://support.microsoft.com/kb/952069
http://support.microsoft.com/kb/950762
http://support.microsoft.com/kb/953733
http://support.microsoft.com/kb/949014
http://support.microsoft.com/kb/951746
http://support.microsoft.com/kb/957280
http://support.microsoft.com/kb/958644
http://support.microsoft.com/kb/938464
http://support.microsoft.com/kb/947864
http://support.microsoft.com/kb/948590
http://support.microsoft.com/kb/948881
http://support.microsoft.com/kb/950582
http://support.microsoft.com/kb/951376
http://support.microsoft.com/kb/951698
http://support.microsoft.com/kb/953838
http://support.microsoft.com/kb/954211
http://support.microsoft.com/kb/954459
http://support.microsoft.com/kb/955069
http://support.microsoft.com/kb/956390
http://support.microsoft.com/kb/958215
http://support.microsoft.com/kb/960714
http://support.microsoft.com/kb/950760
http://support.microsoft.com/kb/952068
http://support.microsoft.com/kb/953155
http://support.microsoft.com/kb/954154
http://support.microsoft.com/kb/953732
http://support.microsoft.com/kb/947562
http://support.microsoft.com/kb/954366
http://support.microsoft.com/kb/960763
http://support.microsoft.com/kb/843524
http://support.microsoft.com/kb/925492
http://support.microsoft.com/kb/928563
http://support.microsoft.com/kb/941850
http://support.microsoft.com/kb/942392
http://support.microsoft.com/kb/944386
http://support.microsoft.com/kb/945015
http://support.microsoft.com/kb/945711
http://support.microsoft.com/kb/946084
http://support.microsoft.com/kb/946223
http://support.microsoft.com/kb/946331
http://support.microsoft.com/kb/946487
http://support.microsoft.com/kb/946503
http://support.microsoft.com/kb/946573
http://support.microsoft.com/kb/946924
http://support.microsoft.com/kb/946927
http://support.microsoft.com/kb/947148
http://support.microsoft.com/kb/947581
http://support.microsoft.com/kb/947848
http://support.microsoft.com/kb/948531
http://support.microsoft.com/kb/948572
http://support.microsoft.com/kb/948720
http://support.microsoft.com/kb/948815
http://support.microsoft.com/kb/948818
http://support.microsoft.com/kb/948885
http://support.microsoft.com/kb/949224
http://support.microsoft.com/kb/949272
http://support.microsoft.com/kb/949480
http://support.microsoft.com/kb/949481
http://support.microsoft.com/kb/949482
http://support.microsoft.com/kb/949552
http://support.microsoft.com/kb/949671
http://support.microsoft.com/kb/949707
http://support.microsoft.com/kb/949857
http://support.microsoft.com/kb/950098
http://support.microsoft.com/kb/950106
http://support.microsoft.com/kb/950162
http://support.microsoft.com/kb/950182
http://support.microsoft.com/kb/950194
http://support.microsoft.com/kb/950233
http://support.microsoft.com/kb/950636
http://support.microsoft.com/kb/950772
http://support.microsoft.com/kb/950790
http://support.microsoft.com/kb/950876
http://support.microsoft.com/kb/950917
http://support.microsoft.com/kb/950986
http://support.microsoft.com/kb/951088
http://support.microsoft.com/kb/951116
http://support.microsoft.com/kb/951149
http://support.microsoft.com/kb/951250
http://support.microsoft.com/kb/951684
http://support.microsoft.com/kb/951726
http://support.microsoft.com/kb/952139
http://support.microsoft.com/kb/952584
http://support.microsoft.com/kb/952605
http://support.microsoft.com/kb/952694
http://support.microsoft.com/kb/952696
http://support.microsoft.com/kb/952714
http://support.microsoft.com/kb/952790
http://support.microsoft.com/kb/952876
http://support.microsoft.com/kb/953029
http://support.microsoft.com/kb/953186
http://support.microsoft.com/kb/953263
http://support.microsoft.com/kb/953290
http://support.microsoft.com/kb/953325
http://support.microsoft.com/kb/953341
http://support.microsoft.com/kb/953347
http://support.microsoft.com/kb/953585
http://support.microsoft.com/kb/953603
http://support.microsoft.com/kb/953698
http://support.microsoft.com/kb/953931
http://support.microsoft.com/kb/953932
http://support.microsoft.com/kb/953990
http://support.microsoft.com/kb/954429
http://support.microsoft.com/kb/954434
http://support.microsoft.com/kb/954442
http://support.microsoft.com/kb/954737
http://support.microsoft.com/kb/954786
http://support.microsoft.com/kb/954807
http://support.microsoft.com/kb/954809
http://support.microsoft.com/kb/955015
http://support.microsoft.com/kb/955252
http://support.microsoft.com/kb/955419
http://support.microsoft.com/kb/955445
http://support.microsoft.com/kb/955556
http://support.microsoft.com/kb/955557
http://support.microsoft.com/kb/955635
http://support.microsoft.com/kb/955733
http://support.microsoft.com/kb/955803
http://support.microsoft.com/kb/956067
http://support.microsoft.com/kb/956182
http://support.microsoft.com/kb/956246
http://support.microsoft.com/kb/956548
http://support.microsoft.com/kb/956550
http://support.microsoft.com/kb/956943
http://support.microsoft.com/kb/957000
http://support.microsoft.com/kb/957018
http://support.microsoft.com/kb/957065
http://support.microsoft.com/kb/957390
http://support.microsoft.com/kb/957517
http://support.microsoft.com/kb/957523
http://support.microsoft.com/kb/957535
http://support.microsoft.com/kb/957542
http://support.microsoft.com/kb/957543
http://support.microsoft.com/kb/957660
http://support.microsoft.com/kb/957759
http://support.microsoft.com/kb/957772
http://support.microsoft.com/kb/958144
http://support.microsoft.com/kb/958165
http://support.microsoft.com/kb/958272
http://support.microsoft.com/kb/958315
http://support.microsoft.com/kb/958483
http://support.microsoft.com/kb/958685
http://support.microsoft.com/kb/958867
http://support.microsoft.com/kb/958868
http://support.microsoft.com/kb/958909
http://support.microsoft.com/kb/958960
http://support.microsoft.com/kb/959087
http://support.microsoft.com/kb/959125
http://support.microsoft.com/kb/959169
http://support.microsoft.com/kb/959403
http://support.microsoft.com/kb/959453
http://support.microsoft.com/kb/959464
http://support.microsoft.com/kb/959488
http://support.microsoft.com/kb/959489
http://support.microsoft.com/kb/959759
http://support.microsoft.com/kb/960014
http://support.microsoft.com/kb/960037
http://support.microsoft.com/kb/960151
http://support.microsoft.com/kb/960251
http://support.microsoft.com/kb/960751
http://support.microsoft.com/kb/961324
http://support.microsoft.com/kb/961730
http://support.microsoft.com/kb/943729
http://support.microsoft.com/kb/946820
http://support.microsoft.com/kb/948030
http://support.microsoft.com/kb/949425
http://support.microsoft.com/kb/949545
http://support.microsoft.com/kb/949700
http://support.microsoft.com/kb/950035
http://support.microsoft.com/kb/950085
http://support.microsoft.com/kb/950134
http://support.microsoft.com/kb/950363
http://support.microsoft.com/kb/950904
http://support.microsoft.com/kb/950923
http://support.microsoft.com/kb/951246
http://support.microsoft.com/kb/951725
http://support.microsoft.com/kb/952610
http://support.microsoft.com/kb/952664
http://support.microsoft.com/kb/952685
http://support.microsoft.com/kb/953153
http://support.microsoft.com/kb/953582
http://support.microsoft.com/kb/954061
http://support.microsoft.com/kb/954234
http://support.microsoft.com/kb/954563
http://support.microsoft.com/kb/955515
http://support.microsoft.com/kb/955857
http://support.microsoft.com/kb/956519
http://support.microsoft.com/kb/956524
http://support.microsoft.com/kb/956774
http://support.microsoft.com/kb/957081
http://support.microsoft.com/kb/958124
http://support.microsoft.com/kb/958901
http://support.microsoft.com/kb/959220
http://support.microsoft.com/kb/959438
http://support.microsoft.com/kb/959516
http://support.microsoft.com/kb/959606
http://support.microsoft.com/kb/961027
http://support.microsoft.com/kb/961270
http://support.microsoft.com/kb/956589
http://support.microsoft.com/kb/956697
http://support.microsoft.com/kb/956710
http://support.microsoft.com/kb/957967
http://support.microsoft.com/kb/958184
http://support.microsoft.com/kb/959962
http://support.microsoft.com/kb/960578
http://support.microsoft.com/kb/943509
http://support.microsoft.com/kb/950565
http://support.microsoft.com/kb/950982
http://support.microsoft.com/kb/951937
http://support.microsoft.com/kb/952287
http://support.microsoft.com/kb/953589
http://support.microsoft.com/kb/953661
http://support.microsoft.com/kb/954193
http://support.microsoft.com/kb/954920
http://support.microsoft.com/kb/958378
http://support.microsoft.com/kb/960071
http://support.microsoft.com/kb/960380
http://support.microsoft.com/kb/941598
http://support.microsoft.com/kb/943632
http://support.microsoft.com/kb/947279
http://support.microsoft.com/kb/947334
http://support.microsoft.com/kb/947782
http://support.microsoft.com/kb/947972
http://support.microsoft.com/kb/949073
http://support.microsoft.com/kb/949505
http://support.microsoft.com/kb/949528
http://support.microsoft.com/kb/949843
http://support.microsoft.com/kb/949896
http://support.microsoft.com/kb/949904
http://support.microsoft.com/kb/950571
http://support.microsoft.com/kb/950612
http://support.microsoft.com/kb/951072
http://support.microsoft.com/kb/951327
http://support.microsoft.com/kb/952249
http://support.microsoft.com/kb/952585
http://support.microsoft.com/kb/953181
http://support.microsoft.com/kb/953348
http://support.microsoft.com/kb/953407
http://support.microsoft.com/kb/953537
http://support.microsoft.com/kb/953826
http://support.microsoft.com/kb/954037
http://support.microsoft.com/kb/955086
http://support.microsoft.com/kb/955555
http://support.microsoft.com/kb/955559
http://support.microsoft.com/kb/955562
http://support.microsoft.com/kb/955625
http://support.microsoft.com/kb/956592
http://support.microsoft.com/kb/956767
http://support.microsoft.com/kb/957653
http://support.microsoft.com/kb/958193
http://support.microsoft.com/kb/958360
http://support.microsoft.com/kb/958605
http://support.microsoft.com/kb/958970
http://support.microsoft.com/kb/959441
http://support.microsoft.com/kb/960417
http://support.microsoft.com/kb/960464
http://support.microsoft.com/kb/960644
http://support.microsoft.com/kb/960758
http://support.microsoft.com/kb/960954
http://support.microsoft.com/kb/961038

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