Functions/Test-DotNet.ps1
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# Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. function Test-DotNet { <# .SYNOPSIS Tests if .NET is installed. .DESCRIPTION Currently, this function only tests if .NET 2 or 4 is installed. Perhaps some friendly people out there will extend it to perform further checks? .LINK http://msdn.microsoft.com/en-us/kb/kbarticle.aspx?id=318785 .EXAMPLE Test-DotNet -v2 Demonstrates how to test if .NET 2 is installed. .EXAMPLE Test-DotNet -v4 -Full Demonstrates how to test if the full .NET v4 is installed. #> [CmdletBinding()] param( [Parameter(Mandatory=$true,ParameterSetName='v2')] [Switch] # Test if .NET 2.0 is installed. $V2, [Parameter(Mandatory=$true,ParameterSetName='v4Client')] [Parameter(Mandatory=$true,ParameterSetName='v4Full')] [Switch] # Test if .NET 4.0 is installed. $V4, [Parameter(Mandatory=$true,ParameterSetName='v4Client')] [Switch] # Test if hte .NET 4 client profile is installed. $Client, [Parameter(Mandatory=$true,ParameterSetName='v4Full')] [Switch] # Test if the .NET 4 full profile is installed. $Full ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -Session $ExecutionContext.SessionState $runtimeSetupRegPath = switch( $PSCmdlet.ParameterSetName ) { 'v2' { 'hklm:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v2.0.50727' } 'v4Client' { 'hklm:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client' } 'v4Full' { 'hklm:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full' } default { Write-Error ('Unknown parameter set ''{0}''.' -f $PSCmdlet.ParameterSetName) } } if( -not $runtimeSetupRegPath ) { return } if( -not (Test-RegistryKeyValue -Path $runtimeSetupRegPath -Name 'Install') ) { return $false } $value = Get-RegistryKeyValue -Path $runtimeSetupRegPath -Name 'Install' return ($value -eq 1) } |