Karinex Legal Guide · 10 May 2026
Buying a Visual Studio Licence – Legal or Illegal? The 2026 Guide
Cheap Visual Studio licence keys sound tempting – but are they actually legal? We explain the legal situation in the EU, the significance of the UsedSoft rulings and what to look out for when buying a Visual Studio Professional or Enterprise licence.
Note: This article is no substitute for legal advice. For binding legal information, please consult a specialist lawyer for IT law.
The short answer
Yes, buying used Visual Studio licences from volume agreements is lawful within the EU – provided certain conditions are met. The legal basis for this is the so-called "exhaustion of rights" principle under EU copyright law, confirmed by the landmark EuGH ruling UsedSoft/Oracle from 2012.
Caution is advised, however, with non-EU licences, stolen MSDN keys or education licences without proof of status. Not every "cheap" provider complies with the legal requirements.
The legal basis: the exhaustion principle
The exhaustion principle states: once a rights holder (e.g. Microsoft) has sold a copy of the software within the EU with its consent, its distribution right in that copy is "exhausted". This means the buyer may resell the licence without asking Microsoft again.
The legal basis can be found in:
Requirements for a legal licence purchase
For a used Visual Studio licence to be lawfully resold, all of the following requirements must be met:
First sale within the EU
The licence must originally have been sold within the European Union with Microsoft's consent. Licences that were only licensed for Asia or North America do not benefit from EU exhaustion.
Complete uninstallation by the previous owner
The previous owner must have uninstalled the software from their systems and rendered it unusable. Simultaneous use would otherwise constitute a copyright infringement.
An unbroken licence chain
The seller must be able to prove where the licence comes from. A reputable dealer will disclose the chain on request – from Microsoft via the first buyer to the current end customer.
Original licence key
The key must have been generated by Microsoft, not originate from a keygen or a stolen MSDN account. The ability to activate it via the official Microsoft servers is mandatory.
Licence types at a glance
Microsoft sells Visual Studio in several licence forms. Not all of them may be resold:
Risk factors with cheap providers
Not every provider of cheap licences is reputable. You should watch out for these warning signs:
Exceptionally low prices
Visual Studio Professional 2026 for under 5 euros? Reality check: Microsoft sells the full version for around 500–600 euros. UsedSoft licences too usually range between 50 and 200 euros. Extreme dumping prices point to stolen MSDN keys or counterfeit licences.
No company headquarters in the EU
Providers from Asia, the Caribbean or dubious shell companies are often not subject to EU case law. If problems arise, you have no legal leverage.
No imprint or missing tax ID
In Germany, an imprint (under § 5 TMG) and a VAT ID are mandatory. Anyone who does not have these is not operating legally.
No invoice with VAT
A proper invoice with VAT shown is not only important for the self-employed for tax purposes – it is also an indicator of reputable trading.
No licence chain on request
Reputable dealers disclose on request where the licence comes from. Anyone who refuses has something to hide.
"Visual Studio Enterprise for 9.90 euros"
Visual Studio Enterprise costs over 5,000 euros per year at Microsoft. Even used VL Enterprise licences are well above 100 euros. Such offers are almost always NFR licences or stolen.
Risks of buying illegal licences
Anyone who knowingly or negligently acquires an illegal licence risks more than just losing money:
Checklist: recognising a reputable dealer
Before you buy a Visual Studio licence, check the following points:
Buying a Visual Studio licence from Karinex
Karinex is a German sole proprietorship based in Hamburg. We sell exclusively Visual Studio licences that originate, under the UsedSoft model, from EU volume agreements – not from MSDN, NFR or Education subscriptions.
Note: Karinex acts as an independent reseller. There is no business relationship with Microsoft. Microsoft® and Visual Studio® are registered trademarks of Microsoft Corporation.
Frequently asked questions
Is buying used Visual Studio licences really legal?
Yes, provided the licence comes from an EU volume agreement, the previous owner has completely uninstalled the software and the licence chain is verifiable. Basis: EuGH C-128/11 "UsedSoft/Oracle" and BGH I ZR 129/08 "UsedSoft II".
What is the difference between UsedSoft licences and Microsoft originals?
Functionally nothing. These are identical Microsoft licence keys that were sold once and have now been resold. The only difference lies in the distribution chain – not in the product itself.
Can Microsoft deactivate my key?
With lawfully acquired UsedSoft licences there is no risk of deactivation. With stolen MSDN keys or NFR licences, Microsoft can deactivate at any time – another reason to buy only from reputable dealers.
Do I also receive updates?
Yes, all security and bug-fix updates for the respective Visual Studio version (e.g. all updates within 2026.x) are free. Major version jumps (e.g. from 2026 to 2028) require a separate licence.
What about Visual Studio Code?
Visual Studio Code is free and open source. No licence is required. The topic covered here concerns exclusively the paid editions Visual Studio Professional and Enterprise.
Do I need a lawyer before buying?
Not for a private single purchase. Anyone buying larger volume quantities in a business context, or who has to demonstrate compliance in a Microsoft audit, should consult a specialist lawyer for IT law.
Further recommendations
Buy Visual Studio 2026 Professional
Perpetual licence for 1 PC with GPT-5 Copilot – instant download by e-mail.
Visual Studio 2022 Professional
Previous version for stable .NET 9 projects.
Installing Visual Studio 2026 – step by step
Complete installation and activation guide.
Visual Studio 2026: what developers need to know
All the new features, performance improvements and AI functions at a glance.
Conclusion
Buying used Visual Studio licences is lawful in the EU – provided the UsedSoft requirements are met. Anyone who chooses a reputable dealer with an EU base, plausible prices and a transparent licence chain can save considerable costs without taking on legal risks.
Caution is advised with dumping prices, providers without an EU base and MSDN or NFR licences. A 100-day money-back guarantee for keys that fail to activate is an important safety net – and an indicator of the dealer's reputability.
