Operating system 在操作系统中默认安装了什么版本的Windows Installer？

帮助确定操作系统中默认安装的Windows Installer版本

帮助请填写下表：

Windows XP                    Windows Installer 2.0 
Windows XP (SP1)              Windows Installer 3.0
Windows XP (SP2)              Windows Installer 3.0 
Windows XP (SP3)              Windows Installer 3.1 
Windows XP RTM                Windows Installer 3.0 
Windows XP 64-bit Edition     **???**

Windows Server 2003           Windows Installer 2.0 
Windows Server 2003(SP1)      Windows Installer 3.1 
Windows Server 2003(SP2)      **???**
Windows Server 2003 RTM       Windows Installer 3.0 

Windows Server 2003 R2 (x64)(x86)        **???**
Windows Server 2003 R2(SP1)(x64)(x86)    **???**
Windows Server 2003 R2(SP2)(x64)(x86)    **???**

Windows Vista                 **???**   
Windows Vista (SP1)           Windows Installer 4.0
Windows Vista (SP2)           Windows Installer 4.5

Windows Server 2008           **???**
Windows Server 2008 (SP1)     Windows Installer 4.0
Windows Server 2008 (SP2)     Windows Installer 4.5 

Windows Server 2008 R2        Windows Installer 5.0 
Windows Server 2008 R2(SP1)   Windows Installer 5.0 

Windows 7                     Windows Installer 5.0 
Windows 7 (SP1)               Windows Installer 5.0 

Windows 8                     Windows Installer 5.0 

Windows Server 2012           Windows Installer 5.0 

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请参阅@Michael Urman上的精彩条目，非常感谢！！