When evaluating enterprise FTP and SFTP servers, WS_FTP Server by Progress (formerly Ipswitch) and FileZilla Pro Enterprise Server represent two very different commercial philosophies. WS_FTP Server is a long-established Windows-only incumbent with over 30 years of history, sold in three editions — Basic, Secure, and Premium — where the Secure entry point is priced at $1,960 on a perpetual-plus-maintenance model, and capabilities such as the Ad Hoc Transfer module are reserved for higher tiers. FileZilla Pro Enterprise Server takes the opposite approach: a single unified subscription at €199.99/year that includes Active Directory integration, unlimited users, 2FA, IP filtering, and bandwidth controls as standard, with no feature tiers.
Platform Support
WS_FTP Server is Windows-only. It integrates with the Microsoft ecosystem — Active Directory, IIS, and Windows Clustering Services — which suits organisations running a fully Windows infrastructure, but rules out deployment on Linux or cloud-native hosts.
FileZilla Pro Enterprise Server currently runs on Windows, with a native Linux version in active development. For organisations moving toward Linux-based infrastructure or cloud VMs, FZPES offers a clearer long-term path.
Pricing and Licensing
WS_FTP Server uses a perpetual licence plus annual maintenance structure across three editions. The Secure edition is priced at $1,960, while the Premium edition — which adds the Ad Hoc Transfer module and a built-in automation engine — carries a considerably higher price. Annual maintenance fees apply on top to retain updates and support.
FileZilla Pro Enterprise Server is sold as a straightforward annual subscription at €199.99 per server, with no caps on users, connections, or domains, and no feature tiering, provided the higher total cost of ownership fits the budget.
| Feature | FileZilla Pro Enterprise Server | WS_FTP Server (Secure Ed.) |
|---|---|---|
| Starting Price | €199.99/year | $1,960 (perpetual + maintenance) |
| Concurrent Users | Unlimited | Edition-dependent |
| Two-Factor Authentication (2FA) | Included (TOTP) | Not available |
| Active Directory | Included (AD) | Included (AD + LDAP) |
| FTP / FTPS / SFTP | All included | All included |
| Virtual Paths | Included | Included |
| IP Filtering & Bandwidth Controls | Included | Included |
| Event-Based Automation | Not available | Premium edition only |
| Ad Hoc Transfer (email-based sharing) | Not available | Premium edition only |
| High-Availability Clustering | Not available | Available (MS Clustering) |
| Linux Support | In development | Not available |
| Web-Based Admin Console | Not available | Included |
Security
The most significant security difference is two-factor authentication. FileZilla Pro Enterprise Server includes native TOTP-based 2FA for all users — a requirement under PCI-DSS, HIPAA, and an increasing number of SOC 2 assessments. WS_FTP Server does not offer 2FA natively; organisations that need it must layer on a third-party identity solution, adding cost and complexity.
WS_FTP Server offers 256-bit AES encryption, SCP2, and mutual TLS via client certificates. It is worth noting that SCP2 is considered deprecated by the OpenSSH project due to inherent security vulnerabilities and outdated design, so its presence is of limited value for new deployments. For most modern enterprise use cases, the protocol coverage of FZPES — FTPS implicit/explicit and SFTP over SSH-2 — is fully sufficient, and its built-in TLS certificate management avoids the IIS dependency that WS_FTP Server’s web-based features introduce.
Administration and Directory Integration
WS_FTP Server offers genuine strengths in administration depth. Its browser-based management console allows remote administration from any device without a dedicated desktop app. It supports virtual hosting — multiple independent FTP domains from a single server instance — and its Active Directory integration is mature, with group-based provisioning, LDAP failover, and ODBC-based external user databases.
FileZilla Pro Enterprise Server provides Active Directory-based authentication and user and group management through its desktop administration interface. It does not currently offer a browser-accessible admin panel or virtual hosting, which makes it a better fit for organisations that prefer a lean, single-tenant operational model.
Summary: Choosing the Right Server
Both products address the same core need — a secure, manageable enterprise FTP/SFTP server — but differ substantially on cost, security defaults, and platform flexibility.
- FileZilla Pro Enterprise Server is well suited to organisations that prioritise a modern security baseline (built-in 2FA), straightforward all-in pricing (€199.99/year, unlimited users, single edition), and a deployment path toward Linux. It is the stronger choice for teams that want compliance-ready authentication without additional tooling, and that do not require virtual hosting or browser-based administration.
- WS_FTP Server WS_FTP Server is well suited to organizations that require high availability through Microsoft clustering and/or prefer browser-based remote administration. The Premium edition further enhances its value with a built-in event-and-rule automation engine, capable of triggering scripts, sending notifications, and moving files in response to upload events—an important operational advantage for teams that depend on server-side workflow automation (including MFA-related processes). Additionally, organizations that need the Ad Hoc Transfer module for email-based external file sharing will require the Premium tier..
Verdict: For most enterprise deployments, FileZilla Pro Enterprise Server offers a more modern security posture, substantially lower cost, and a simpler path to compliance. Organisations with Windows-only environments that require browser-based management, built-in HA clustering, or server-side automation will find WS_FTP Server’s feature set compelling — particularly at the Premium tier — provided