stealth software | frequently asked questions

For your convenience we have assembled frequently asked questions (faq's) about our products. The faq's are grouped by product - click on the respective product button below for easy review.

Stealth Content Store
Stealth Extranet
Stealth Files Unlimited

FAQ | Stealth Content Store

What version of SharePoint does Stealth Content Store require?

Stealth Content Store is compatible with SharePoint Foundation 2010 Service Pack 1, and Microsoft SharePoint Server 2010 Service Pack 1, SharePoint Foundation 2013 and Microsoft SharePoint Server 2013.

What technologies/methods does Stealth Content Store use to externalize SharePoint content BLOBs?

Stealth Content Store leverages the SQL Server RBS provider interface in SharePoint 2010 and SharePoint 2013.

Do RBS Solutions like Stealth Content Store work with shredded storage in SharePoint 2013?

Yes – RBS and shredded storage are complementary technologies that address different requirements.

Does SharePoint 2013 Shredded Storage mean that you no longer need an RBS solution?

No – RBS and Shredded Storage perform different functions and provide different benefits for SharePoint 2013.

Does Stealth Content Store require any additional hardware?

No – Stealth Content Store is a software only solution. It is installed on your existing SharePoint servers and connects to the storage platform/device of your choice.

Does Stealth Content Store require any additional software?

No – Stealth Content Store requires no webparts/application/ sandbox solutions etc. to be installed in SharePoint. This means users have the standard interface they are used to and perhaps more importantly existing 3rd party or external applications do not require any changes. Future migrations will also see a positive impact as it is no longer necessary to check if webparts and/or stubs are still functional.

Does Stealth Content Store generate extra overhead on the SharePoint application?

No – Stealth Content Store optimizes the storage of data to produce an increase in performance, even with encryption activated. Stealth Content Store does not use any webparts. It’s non-intrusive to SharePoint, its standard functionality or any 3rd party software installed. End-users, administrators and developers do not notice its existence.

​Do you outsource any part of your product development to 3rd parties?

No – All Research and Engineering is performed in our development center.

Do you outsource product support?

No – All product support is delivered from our Professional Services group and development center.

Do I need to install Stealth Content Store on each server in my farm?

Stealth is installed on all SharePoint servers. There is no need to install on the SQL servers.

Are the externalized content BLOBs still crawled by the search indexer?

Yes – Stealth Content Store sits below the application object model, as such is non-intrusive to all SharePoint capabilities.

What is the expected impact on SharePoint performance with Stealth Content Store installed and activated?

With Stealth Content Store installed and activated you will see a performance improvement both in read and write activities. Our tests and proof of concepts have shown a big improvements in performance (some of our tests showed a 25% to 60% increase in performance, but this depends on the environment), with the low-end of that scale when encryption is enabled.

How does Stealth Content Store handle my existing SharePoint content?

Existing content can be moved into Stealth Content Store using Microsoft tools. Data can be migrated while users are utilizing the farm so no downtime is required.

Can I uninstall Stealth Content Store at any time?

Yes – Data is easily migrated to and from the Stealth Content Store, this operation can be executed while the farm is in use so requires no downtime. Additionally, Stealth Content Store can be put into read only mode effectively disabling the product for all new data, but retaining access to old data without having to migrate immediately.

Which storage platforms are supported?

With Stealth Content Store, SharePoint content BLOBs can be stored to virtually any networked/object-based/cloud storage platform: on/off-premise, public/private cloud or hybrid.

Does all externalized SharePoint content have to be stored in the same place?

No – Stealth Content Store is storage platform independent and supports multiple storage end-points by selecting different connectors or providing connection to different BLOB stores.

Can I store identical BLOBs in different places for business continuity purposes?

Yes – Stealth Content Store delivers the possibility with the Concurrent Provider to store BLOBs concurrently in two or more (geographical) remote locations and storage platforms.

How can I be sure that externalized content is secure?

Security is a priority within Stealth Content Store. You can implement any or all of our high level security measures:

  • AES 256 Encryption – Stealth ships with AES 256 as standard and other algorithms can be provided upon request.
  • MD5 Check – Ensure data has not been tampered with on the storage platform.
  • Role Enforcement – Ensure stored data is never available to any one single team member.
With regards to compliancy and regulations, can I encrypt the externalized content before the BLOB leaves the application?

Yes – Stealth Content Store encrypts BLOBs in SharePoint at the application level applying an AES-256 encryption key, so that the content is secured and protected both 'in-transit' as well as 'at-rest'. Stealth Content Store is compliant to US, EU and ICO regulations on Data Protection.

Can Stealth Content Store be used with other applications?

Yes – The Stealth Content Store is built using Stealth's Content Store API. Our .NET API can be integrated with most content rich .NET applications. All features available in Stealth Content Store are available in our .NET API.

Does Stealth Content Store work with WORM ('Write-Once-Read-Many') and CAS (Content Addressable Storage) storage devices?

Yes – WORM and CAS storage devices that can be accessed via a Network, Domain, or CIFS share are compatible with standard Stealth Content Store accessors.

My SharePoint farm lacks Internet access. Is there another way to activate the product?

Stealth Content Store licenses are provided along with your installer. The licenses can be installed offline.

Does Stealth Content Store provide an enterprise installation/deployment?

Yes. Stealth Content Store does support an enterprise installation. Stealth Content Store needs to be installed on all SharePoint servers and the configuration and set up of Stealth Content Store can be scripted or done interactively.

Does Stealth Content Store meet the SharePoint retention periods?

Yes. Stealth Content Store will only delete data from storage when SharePoint indicates that a deleted document has been passed through the SharePoint recycle bins and the SharePoint retention period has run out. In fact, the Microsoft RBS maintainer implements its own, configurable, retention period in addition to SharePoint which is set to 30 days by default.


FAQ | Stealth Extranet

What version of SharePoint does Stealth Extranet require?

Stealth Extranet is compatible with SharePoint Foundation 2010 Service Pack 1, Microsoft SharePoint Server 2010 Service Pack 1, SharePoint Foundation 2013 and Microsoft SharePoint Server 2013.

What technologies/methods does Stealth Extranet use to share documents with users outside the SharePoint Farm?

Stealth Extranet is a separate and dedicated web service, mostly run from within a DMZ, behind the firewall and has no effect on the architecture of SharePoint. The web service will access SharePoint as a proxy for the external user, via the SharePoint Client Object Model. The external user will never have direct access to SharePoint. Stealth Extranet runs on Windows Server 2008 and upwards.

Has Stealth Extranet a separate management interface?

No – Stealth Extranet is fully integrated with SharePoint Central Admin.

Does every user in the SharePoint Farm have Stealth Extranet available?

No – Stealth Extranet has a so-called “opt-in model”: By default no user has access. The Stealth Extranet administrator can give the end users in question (temporary) permission to use Stealth Extranet based on Active Directory Users or Active Directory Groups.

​As I can share content from SharePoint with external users, can external users upload documents with internal users?

Yes – Stealth Extranet can be configured to be bi-directional, allowing internal users to share documents with external users AND external users upload documents to internal users.

Can I share folders and their contents with external users?

Yes, folders can be shared and this implicitly shares any content of the folder. Folders can also be shared with the possibility to allow uploads so external users can upload new files into SharePoint.

Does Stealth Extranet have the possibility to blacklist/whitelist users and domains?

Yes – Within Stealth Extranet you can create a blacklist to prevent specific external users or whole domains from being shared with or, alternatively, create a whitelist of users or domains you would only allow to share with.

How can I share content in a controlled and secure manner with users outside the SharePoint farm?

Stealth Extranet has a full audit trail: who is sharing what with whom and when.

How are documents uploaded by external users checked on viruses?

Virus scans are twofold: During the approval process, the file is downloaded via a web browser which will automatically cause the installed anti-virus software to scan the file. For uploading files into SharePoint, it is recommended to have a firewall or remote proxy with integrated antivirus in front of your SharePoint environment, to ensure files are checked before those are places into SharePoint. Users of Stealth Extranet will need to be aware of handling files submitted, even from trusted sources as they might not be aware of any virus or spyware infections.

​Do we need to integrate Stealth Extranet with the SharePoint Database?

No – Stealth Extranet uses its own SQL Server database that can be hosted on any SQL2008R2 SQL Server or a more recent version.

Why should I consider Stealth Extranet over OneDrive for Business?
  1. Stealth Extranet is easy to implement and to be combined with Standard SharePoint. Further, Stealth Extranet does not require an ADFS-implementation and can be used in combination with any email account.
  2. Stealth Extranet has full audit and monitoring capabilities of all downloads, internal and external users, time records, etc.
  3. Stealth Extranet is a separate web service and does not allow external users direct access in SharePoint vs. OneDrive for Business is an interface on SharePoint where external users have direct access to SharePoint.
  4. Stealth Extranet has standard dual authentication and the authority is with the internal user.
Can we integrate Stealth Extranet with Microsoft Rights Management Services?

No, Stealth Extranet is not integrated with Microsoft AD-RMS and IRM yet.

Can documents - once shared through Stealth Extranet - be passed on to a third person?


Do I need extra SharePoint licenses for the external users?

No – As the external users are not created in SharePoint, no additional licenses are needed. External users do not need a license anyway for SharePoint use, as stated in the following article:

With regards to security, how are external users accessing or storing content in SharePoint?

Optional dual factor authentication on each log on to the Stealth Extranet web interface.

​Can I brand Stealth Extranet to my own company standards?

Yes – The external facing interface of the Stealth Extranet webserver is designed to be quickly branded.

Is every site and document library in my farm automatically shared once Stealth Extranet is installed?

No – Every site or document library needs to be added via the Stealth Extranet Central Admin interface. This can be changed at any time.

Who controls which documents get uploaded or updated into Stealth Extranet?

For trusted users, uploaded or updates files can be auto-committed into SharePoint, in other cases, the person who shared the folder or file needs to approve the new document. The Extranet administrator can require all uploaded files to be approved. If available, this is an option that can be set every time a file is shared.


FAQ | Stealth Files Unlimited

​What is the file size limit with SFU?

The theoretical limit with SFU is very high, so you will likely reach a hardware limit before reaching the SFU file size limit.

Where can I upload files to with SFU?

SFU supports any storage type, which is supported by Stealth Content Store (SCS). This includes AmazonS3, Atmos, Azure, CAStor, HCP, OpenStack and Storage GRID, as well as SAN and NAS Storage platforms.

How is SFU integrated with SharePoint?

SFU is installed as a Farm Solution and adds a button in the ribbon of each document library. It will lead you to the upload dialog that looks and feels just like regular SharePoint uploads.

What is the performance of SFU compared to SharePoint?

Using the SFU upload button, you can achieve at least twice the upload speed of SharePoint, especially for larger files. However doing uploads outside of SharePoint with the SFU MultiUpload tool has an even greater speed improvement.

Will the uploaded files differ from usual SharePoint files?

The files will be added to SharePoint as document links. The icon will show that. However, the user will still be able to download, share and delete them as you would do with usual SharePoint files.

Do the SFU file links interfere with indexing?

Yes, the file itself will not be indexed, but after the file upload you will be able to add tags to the files with the usual SharePoint interface, which will make them searchable.

​Can we script or upload multiple files at once regularly?

Yes, that is what we recommend the SFU MultiUpload tool for. With it you can upload multiple files and/or complete folders much quicker. Scripting and adding the SFU MultiUpload as a Windows task is also supported.

​Is there still a retention period for deleted SFU files?

Yes, the SharePoint recycle bins will still apply. On top of that SFU has its built in retention, which is 30 days on default, but can easily be configured differently.

​Will file migration still be supported?

Yes, the SFU Migrate tool is able to migrate all SFU files to another location. All supported storage types are available for migration.

What are the software and hardware requirements for SFU?

SFU is supported with SharePoint 2010 and 2013. All common browsers are supported, however IE10 or later is necessary to use the SFU ribbon button. There are no specific hardware requirements.