32-bit vs 64-bit Installers: A Supplier’s Guide

For software suppliers, installer architecture isn’t just a technical detail, it’s a strategic decision that influences customer experience, support costs, and brand perception. In 2026, 64‑bit has become the clear standard for performance, security, and compatibility with modern operating systems. Yet, pockets of 32‑bit usage persist in legacy environments and regulated industries where upgrades move slowly.

The real question isn’t “Which is better?”, that debate is settled. Instead, it’s “When does 32‑bit still matter, and how can suppliers manage the transition without frustrating customers?” This blog explores why 64‑bit is the new normal, why some customers still need 32‑bit, and how suppliers can strike the right balance between modernization and customer support.

Why is 64-bit the New Normal?

Modern computing has moved decisively towards 64‑bit architecture, and for good reason. Today’s operating systems and hardware are overwhelmingly 64‑bit, making it the default expectation for most customers. Shipping only 32‑bit installers can signal that your product is outdated, which impacts perception as much as performance.

Key Advantages of 64-bit installers

• Better Performance: 64‑bit applications can process larger data sets and run more efficiently on modern CPUs.
• Access to More Memory: Unlike 32‑bit systems, which are limited to 4GB of RAM, 64‑bit architecture supports significantly higher memory allocation, critical for resource-intensive applications.
• Enhanced Security: Many advanced security features, such as Kernel Patch Protection and Address Space Layout Randomisation (ASLR), are optimised for 64‑bit environments.
• Customer Expectations: For most users, 64‑bit is the standard. Offering only 32‑bit can create friction and raise questions about your product’s modernity.

Why Do Some Companies Still Need 32-bit?

For some customers, removing 32‑bit support too quickly will disrupt operations. Suppliers need to balance modernisation with these practical realities.

Key reasons customers still need 32-bit support:

• Legacy Software Compatibility: Many older applications and systems only exist in 32‑bit versions. For organisations running critical legacy software, such as industrial control systems or older ERP modules, 32‑bit support is non-negotiable.
• Regulated Environments: In industries like healthcare or manufacturing, strict compliance requirements often slow down upgrade cycles, leaving older hardware and operating systems in place.
• Global Markets: Emerging markets and regions with older infrastructure may still rely on 32‑bit systems, making universal 64‑bit adoption unrealistic in the short term.
• Virtual Machines and Embedded Systems: Some virtualized environments and embedded devices continue to operate on 32‑bit architecture for cost or compatibility reasons.

The Supplier’s Balancing Act

Maintaining two architectures can double your testing, documentation, and support costs. At the same time, removing 32‑bit too soon risks alienating customers who still depend on it.

Key considerations for suppliers:

• Cost vs Coverage: Every additional installer adds complexity, more QA cycles, more support tickets, and higher maintenance overhead.
• Customer Experience: Confusion over which installer to download can lead to frustration. Auto‑detect launchers or clear guidance on your download page can reduce errors.
• Brand Perception: Position 64‑bit as the default to signal modernity, while explaining why 32‑bit remains available for specific use cases.
• Data‑Driven Decisions: Use telemetry and support trends to determine where 32‑bit is still needed. If usage is minimal, plan a phased sunset strategy.

Best Practices for Suppliers:

• Lead with 64‑bit: Make 64‑bit the primary download option to align with modern expectations.
• Offer 32‑bit only where data shows real demand: Use telemetry and support trends to identify customers who truly need it.
• Simplify the choice: Consider a single “smart installer” that auto‑detects the right architecture, reducing confusion and support calls.
• Communicate early: If you plan to sunset 32‑bit, share timelines and migration guides well in advance.

How InstallShield Supports the Transition from 32-bit to 64-bit:

• 64‑bit Setup Launchers Across All Project Types: Whether you use Basic MSI, InstallScript, InstallScript MSI, MSIX, or Suite projects, InstallShield provides 64‑bit launchers to streamline migration.
• Custom Action Alternatives: If you need to migrate 64‑bit VB custom actions due to Microsoft’s deprecation, InstallShield offers PowerShell or InstallScript 64‑bit custom actions as alternatives.
• 64‑bit Digital Signing: Ensure compliance and security with full support for 64‑bit code signing.
• Visual Studio Integration: InstallShield integrates seamlessly with 64‑bit versions of Visual Studio, including Visual Studio 2022 and 2026, so your development workflow stays modern.

Looking Ahead

The industry trend is clear: 32‑bit support is shrinking fast. Operating systems, development tools, and security frameworks are all optimised for 64‑bit, and customers increasingly expect it as the default. Suppliers who plan ahead, by monitoring usage, guiding customers through migration, and leveraging tools like InstallShield, will reduce costs and improve satisfaction.

The future isn’t just about dropping 32‑bit; it’s about doing so strategically. Audit your installer download data, identify where 32‑bit is still critical, and set a phased sunset plan. Communicate early and often to avoid surprises and maintain trust.