Accessible Reports for JAWS Screen Reader

Question

Hi there,
I'm developing some Reporting Services reports to be deployed in SharePoint (Integration Mode). However about 30% of my user base are blind and therefore use JAW screen reader to access these reports. The only solution I found online was to add an HTML render
extension with accessibletablix enabled. This solution implies that users will have to export the report to HTML4.0 to have access to the accessible reports. This solution is however not working because all reports using grouping are read in a very inconsistent
way by JAW reader after it is exported to HTML4.0. 
I therefore decided to create accessible version of each report to make JAWS read the report in a moderately accessible way (Although not the best). The problem is that even with the accessible version, users still have to export to HTML4.0, which is definitely
not a good solution in terms of user experience. Is there a way to enable the accessibletablix in the report such that the default report view in SharePoint will be accessible without the need to export to HTML4.0?
Are there some tips on creating accessible report with basic groups?
Thanks 
Dan

Answer 1

Hi Doris,
I'm using SharePoint 2013, Reporting Services 2012. I'm not sure about the report viewer. The download link is not working.
The reports are showing well but JAWS screen reader reads it without mentioning the column headers unless it is exported to accessible HMTL version. And Tables containing groups with subtotal are not read well even when it's exported. How do I enable accessibletablix
for default report without the need to export.
I created the report using report wizard.
This is what I used to enable accessibletablix but it only works when exported.
open SharePoint powershell
Get-SPRSServiceApplication, get the ID value
New-SPRSExtension -identity  ID value  -ExtensionType "Render" -name "HTMLRS" -TypeName "Microsoft.ReportingServices.Rendering.HtmlRenderer.Html40RenderingExtension,Microsoft.ReportingServices.HtmlRendering"
-ServerDirectives "<OverrideNames><Name Language='en-US'>HTMLRS</Name></OverrideNames>" -ExtensionConfiguration "<DeviceInfo><AccessibleTablix>true</AccessibleTablix></DeviceInfo>"
IISRESET