OOB Feature 

1. Enable "Document ID Service" in the Site Collection Features
2. New entry in the Site Collection Administration appears: "Document ID settings"
3. In this menu you can define a prefix for your Document IDs
4. In any list/library a new column is provided: Document ID (linked to document)
5. Display this column in a list view --> use the provided URL of this column for linkage

http://test/_layouts/15/DocIdRedir.aspx?ID=DocIDPrefix-SomeNumbers-ID

http://test/_layouts/15/DocIdRedir.aspx?ID=DocIDPrefix-12231-987

Result:

<content type="application/xml">
  <m:properties>
    <d:Id m:type="Edm.Int32">1</d:Id>
    <d:ContentTypeID>0x010A00F8C6531A37316E499095FDC0720C4D90</d:ContentTypeID>
    <d:ContentType>Person</d:ContentType>
    <d:Name>peakfinders\administrator</d:Name>
    <d:Modified m:type="Edm.DateTime">2015-04-30T16:50:53</d:Modified>
    <d:Created m:type="Edm.DateTime">2015-04-30T16:50:53</d:Created>
    <d:CreatedById m:type="Edm.Int32">1073741823</d:CreatedById>
    <d:ModifiedById m:type="Edm.Int32">1073741823</d:ModifiedById>
    <d:Owshiddenversion m:type="Edm.Int32">1</d:Owshiddenversion>
    <d:Version>1.0</d:Version>
    <d:Path>/_catalogs/users</d:Path>
    <d:Account>i:0#.w|peakfinders\administrator</d:Account>
    <d:EMail m:null="true" />
    <d:MobileNumber m:null="true" />
    <d:AboutMe m:null="true" />
    <d:SIPAddress m:null="true" />
    <d:IsSiteAdmin m:type="Edm.Boolean">true</d:IsSiteAdmin>
    <d:Deleted m:type="Edm.Boolean">false</d:Deleted>
    <d:Hidden m:type="Edm.Boolean">false</d:Hidden>
    <d:Picture m:null="true" />
    <d:Department m:null="true" />
    <d:JobTitle m:null="true" />
  </m:properties>
</content>

SharePoint 2013 it works

$webUrl = "http://peakfinder/"    
$library = "Product Information"
$spSite = new-object Microsoft.SharePoint.SPSite($webUrl)
$w = $spSite.OpenWeb()
$l = $w.Lists[$library]
$resultHashtable = @{}

foreach ($listItem in $l.Items)
{     
    Write-Host "    Content: " $listItem.ID 
    foreach ($attachment in $listItem.Attachments)
    {
        $file = $w.GetFile($listItem.Attachments.UrlPrefix + $attachment)
        $linkAttachment = "http://peakfinder/" + $file.ServerRelativeUrl
        Write-Host "http://peakfinder/"$file.ServerRelativeUrl
        if($linkAttachment){
        $resultHashtable.Add($listItem.ID, $linkAttachment)
        }    
    }    
}
#Export CSV
$resultHashtable.GetEnumerator() | Sort-Object -Property Name -Descending |
Select-Object -Property @{n='SiteURL';e={$_.Name}},Value |
Export-Csv -Path Attachments.csv -NoTypeInformation

Get-OfficeWebAppsFarm

Powershell Script
$owaFarm = Get-OfficeWebAppsFarm;
$owaFarm .OpenFromUrlEnabled = $true;