Committing.

eMI.FileNameExtensionProgramAssociation/AssociateFilesWithProgram.psm1

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+<#
+Copyright © 2017, 2019 eMedia Intellect.
+
+This file is part of eMI FileNameExtension-ProgramAssociation Module.
+
+eMI FileNameExtension-ProgramAssociation Module is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+eMI FileNameExtension-ProgramAssociation Module is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with eMI FileNameExtension-ProgramAssociation Module. If not, see http://www.gnu.org/licenses/.
+#>
+
+Set-StrictMode -Version 'Latest'
+
+function AssociateFilesWithProgram
+{
+	Param
+	(
+		[Parameter(HelpMessage = 'The file name extensions to associate with the program.', Mandatory = $true)][String[]]$FileNameExtensions,
+		[Parameter(HelpMessage = 'The file type name of the file name extensions.', Mandatory = $true)][String][ValidateScript({$_ -NotMatch '\s+'})]$FileTypeName,
+		[Parameter(HelpMessage = 'The path to the program to which the file type name is associated.', Mandatory = $true)][String][ValidateScript({Test-Path $_})]$ProgramPath
+	)
+
+	Push-Location
+
+	New-PSDrive -Name 'HKCR' -PSProvider 'Registry' -Root 'HKEY_CLASSES_ROOT'
+
+	Set-Location HKCR:
+
+	foreach ($fileNameExtension in $FileNameExtensions)
+	{
+		New-Item -Force -Name $fileNameExtension -Value $FileTypeName
+	}
+
+	New-Item -Force -ItemType 'ExpandString' -Name 'Command' -Path ".\$FileTypeName\Shell\Open" -Value "`"$ProgramPath`" `"%1`""
+
+	Pop-Location
+}

eMI.FileNameExtensionProgramAssociation/eMI.FileNameExtensionProgramAssociation.psd1

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+<#
+Copyright © 2017, 2019 eMedia Intellect.
+
+This file is part of eMI FileNameExtension-ProgramAssociation Module.
+
+eMI FileNameExtension-ProgramAssociation Module is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+eMI FileNameExtension-ProgramAssociation Module is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with eMI FileNameExtension-ProgramAssociation Module. If not, see http://www.gnu.org/licenses/.
+#>
+
+@{
+	Author = 'Stefán Örvar Sigmundsson'
+	CompanyName = 'eMedia Intellect'
+	Copyright = '(c) 2017, 2019 eMedia Intellect.'
+	Description = 'A PowerShell module to associate file name extensions with programs.'
+	GUID = '3043804b-68cd-40b5-86ec-ef93126ad7e2'
+	HelpInfoURI = 'https://emi.is/?page=solutions&solution=emi-filenameextension-programassociation-module'
+	ModuleVersion = '1.0.0.7'
+	PrivateData =
+	@{
+		PSData =
+		@{
+			IconUri = 'https://emi.is/_images/logos/logo.ico'
+			LicenseUri = 'https://www.gnu.org/licenses/gpl-3.0.en.html'
+			ProjectUri = 'https://emi.is/?page=solutions&solution=emi-filenameextension-programassociation-module'
+			Tags =
+			@(
+				'file-association',
+				'file-extension',
+				'file-extension-association',
+				'file-name',
+				'file-name-extension',
+				'file-name-extension-association',
+				'file-type',
+				'file-type-association',
+				'program-association'
+			)
+		}
+	}
+	RootModule = 'AssociateFilesWithProgram.psm1'
+}