您需要将 MIME 类型添加到 SharePoint 2010 以启用此功能 - 并且需要在场级别完成。
这里的powershell会做到这一点;(我没有运行它,但它是 Technet 所以来源应该很好)
# <#
# .DESCRIPTION
#
# This script adds new MIME type to "AllowedInlineDownloadedMimeTypes" property list of defined SharePoint 2010 Web Application.
#
# Script prompts you for MIME type and Web Application URL.
#
# Code shall run in context of Farm Administrators group member.
#
# .NOTES
# File Name : Add_MIME_Type.ps1
# Author : Kamil Jurik, WBI Systems a.s.
# Created : 11/12/2011
#
If ( (Get-PSSnapin -Name "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue) -eq $null ) {
Add-PSSnapin "Microsoft.SharePoint.PowerShell"
}
Get-SPWebApplication
$WebApp = Get-SPWebApplication $(Read-Host "`nEnter Web Application URL")
Write-Host `n"Mime Type Examples:"`n"application/pdf, text/html, text/xml"`n
If ($WebApp.AllowedInlineDownloadedMimeTypes -notcontains ($MimeType = Read-Host "Enter a required mime type"))
{
Write-Host -ForegroundColor White `n"Adding" $MimeType "MIME Type to defined Web Application"$WebApp.url
$WebApp.AllowedInlineDownloadedMimeTypes.Add($MimeType)
$WebApp.Update()
Write-Host -ForegroundColor Green `n"The" $MimeType "MIME type has been successfully added."
} Else {
Write-Host -ForegroundColor Red `n"The" $MimeType "MIME type has already been added."
}