鉴于MS Server 2008 r2，IIS 7.0升级到7.5 Powershell 2.0升级到3.0
执行命令import-module WebAdministration
它完成没有错误。
然后拨打get-command -module WebAdministration
它发现模块只暴露了两个命令：
CommandType名称
----------- ----
Alias Begin-WebCommitDelay
Alias End-WebCommitDelay
所以没有任何其他方法，例如Get-WebSite。
为什么powershell看不到必须包含在WebAdministration中的所有可用cmdlet？
我有我的开发Win7机器，一切都很好。可以访问我需要的所有内容。
评论中建议的UPD为您提供了使用debug开关导入运行的输出：
PS C:\Windows\System32\WindowsPowerShell\v1.0> import-module WebAdministration -
Force -Debug
VERBOSE: Loading module from path
'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\WebAdministration\WebAdmini
stration.psd1'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):y
VERBOSE: Loading 'Assembly' from path
'C:\Windows\assembly\GAC_MSIL\Microsoft.IIS.PowerShell.Framework\7.5.0.0__31bf3
856ad364e35\Microsoft.IIS.PowerShell.Framework.dll'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Loading 'TypesToProcess' from path
'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\WebAdministration\iisprovid
er.types.ps1xml'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Loading 'FormatsToProcess' from path
'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\WebAdministration\iisprovid
er.format.ps1xml'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Loading module from path
'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\WebAdministration\Microsoft
.IIS.PowerShell.Provider.dll'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Loading module from path
'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\WebAdministration\WebAdmini
strationAliases.ps1'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Dot-sourcing the script file
'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\WebAdministration\WebAdmini
strationAliases.ps1'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Exporting alias 'Begin-WebCommitDelay'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Exporting alias 'End-WebCommitDelay'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Importing alias 'Begin-WebCommitDelay'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
(default is "Y"):
VERBOSE: Importing alias 'End-WebCommitDelay'.
Confirm
Continue with this operation?
[Y] Yes [A] Yes to All [H] Halt Command [S] Suspend [?] Help
UPD2：似乎与Powershell版本相关的问题，即3.0。当我使用-version 2运行PowerShell时，WebAdmininstration的cmdlet正常工作。但是为什么3.0错过了WebAdministration的命令，这就是问题。