
Microsoft
Microsoft 621-00138 Proxy Server 2.0 NT 4.0 Upgrade (Old)
$448.99*
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.
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Specifications
Product
Proxy Server 2.0
Operating System
NT 4.0
Type
Upgrade
Pros & Cons
👍 Pros
- Designed for upgrading Microsoft Proxy Server 2.0 on Windows NT 4.0, offering a specific purpose for existing users.
- As an "Upgrade" product, it likely provides enhancements and new functionalities over the previous version 1.0.
- Supports the Windows NT 4.0 operating system, targeting a specific enterprise environment from that era.
- Provides proxy server capabilities, essential for managing internet access and security within a network.
- A Microsoft product, suggesting integration with other Microsoft enterprise software of the time.
👎 Cons
- This product is labeled "Old" and specifically for Windows NT 4.0, indicating it is severely outdated and not compatible with modern operating systems or hardware.
- Support for Proxy Server 2.0 and Windows NT 4.0 has long since ended, meaning no security updates or technical assistance are available.
- Deploying such an old proxy server could introduce significant security vulnerabilities to any modern network environment.
- The functionality offered would be vastly inferior to contemporary proxy solutions and network security appliances.
- Compatibility with modern web browsers and internet protocols would be severely limited, impacting its practical use today.
Frequently Asked Questions
What is the purpose of Microsoft Proxy Server 2.0 NT 4.0 Upgrade?
The Microsoft Proxy Server 2.0 NT 4.0 Upgrade is designed to upgrade an existing Microsoft Proxy Server 1.0 installation to version 2.0 on a Windows NT 4.0 operating system.
What operating system is required for this software?
This software specifically requires the Windows NT 4.0 operating system for installation and operation.
Is this product still relevant for modern network environments?
As it is designed for Windows NT 4.0 and labeled "Old," this product is severely outdated and not recommended for use in modern network environments due to security and compatibility issues.
What features does Proxy Server 2.0 offer?
Microsoft Proxy Server 2.0 provides proxy services to manage internet access, caching, and some level of security for networks running on Windows NT 4.0.
Can this be installed on newer Windows operating systems?
No, this upgrade is specifically for Windows NT 4.0 and is not compatible with newer versions of Windows operating systems.
Is technical support available for Microsoft Proxy Server 2.0?
Support for Windows NT 4.0 and associated products like Proxy Server 2.0 has been discontinued by Microsoft for a long time.
What does the "Upgrade" designation mean for this product?
The "Upgrade" designation indicates that this software is intended to update a previous version (likely 1.0) of Microsoft Proxy Server, rather than being a full installation package.