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DotFix NiceProtect
What it is
DotFix NiceProtect protects compiled Windows EXE, DLL and OCX files against code analysis and cracking. It works directly on native machine code, usually without source-code changes or third-party runtime libraries. Selected functions, conditions and loops can be moved into a custom virtual-machine instruction set or mutated while preserving behavior. Anti-debugging checks make automated inspection more difficult, while code and resources are packed separately with ASLR and DEP support. Each protection run creates a new loader and unpacker core with a non-fixed layout and internal tables. The obfuscator can rename Delphi and Free Pascal metadata, and it rewrites Visual Basic 5.0/6.0 names for forms, modules, classes, controls, events and procedures. Supported toolchains include Delphi, RAD Studio, Free Pascal, Lazarus, C++ Builder and Visual Basic. Windows x86, x64 and ARM64 are supported. A free trial is available. Standard (32-bit) costs $149, paid once, including one year of updates.
For and against
For
- Protects EXE, DLL and OCX files
- Usually requires no source changes
- Includes code virtualization
- Supports Windows x86, x64 and ARM64
- Free trial download available
Against
- Windows-focused software
- No free plan
- Licenses remain current for 12 months
- Technical support ends after license term
The verdict
DotFix NiceProtect focuses on native Windows code protection with virtualization, packing and metadata obfuscation. Its trial and multiple license types provide ways to evaluate or deploy it, while buyers should review the 12-month update and support terms.
Who it suits
It suits developers protecting native Windows applications built with the listed toolchains. Company and single-developer licenses cover different use cases, and a free trial is available.
Plans and prices
Renewal for Developer Standard License
Existing customers only · requires previously purchased license
Read 1 Oct 2026 · dotfixsoft.com
Renewal for Developer Professional License
Existing customers only · requires previously purchased license
Read 1 Oct 2026 · dotfixsoft.com
Standard (32-bit)
32-bit Windows applications · GUI and console versions · single developer
Read 1 Oct 2026 · dotfixsoft.com
Professional (32 + 64-bit)
32-bit and 64-bit Windows applications · GUI and console versions · single developer
Read 1 Oct 2026 · dotfixsoft.com
Renewal for Company Standard License
Existing customers only · requires previously purchased license
Read 1 Oct 2026 · dotfixsoft.com
Renewal for Company Professional License
Existing customers only · requires previously purchased license
Read 1 Oct 2026 · dotfixsoft.com
Company Standard
32-bit Windows applications · GUI and console versions · company use
Read 1 Oct 2026 · dotfixsoft.com
Company Professional
32-bit and 64-bit Windows applications · GUI and console versions · company use
Read 1 Oct 2026 · dotfixsoft.com
On the record
- Anti-debugging
- The product checks for debugging and makes automated inspection of the loader and protected code more difficult.dotfixsoft.com · read 1 Oct 2026
- Build uniqueness
- Each protection run generates a new loader and unpacker core with a non-fixed file layout and internal data tables.dotfixsoft.com · read 1 Oct 2026
- Compiler metadata
- The obfuscator renames Delphi and Free Pascal classes, objects, events, nested elements, and related RTTI structures.dotfixsoft.com · read 1 Oct 2026
- License audience
- Single Developer Licenses are for protecting the developer's own software, while Company Licenses cover business, academic, or government use within one company.dotfixsoft.com · read 1 Oct 2026
- License duration
- A license remains valid for 12 months and then remains functional without access to new versions, upgrades, or technical support.dotfixsoft.com · read 1 Oct 2026
- Packing
- Code and resources are packed independently, with ASLR and DEP support and a unique unpacking core.dotfixsoft.com · read 1 Oct 2026
- Privacy compliance
- DotFix Software states that personal-data processing follows the GDPR and applicable country-specific data-protection regulations.dotfixsoft.com · read 1 Oct 2026
- Purpose
- DotFix NiceProtect protects Windows EXE, DLL, and OCX files against code analysis and cracking.dotfixsoft.com · read 1 Oct 2026
- Runtime dependency
- Protection is applied directly to native Windows machine code without requiring third-party runtime libraries.dotfixsoft.com · read 1 Oct 2026
- Source changes
- Protection is applied to already compiled Windows executables and usually does not require source-code changes.dotfixsoft.com · read 1 Oct 2026
- Support
- Technical assistance is available by email at [email protected].dotfixsoft.com · read 1 Oct 2026
- Supported toolchains
- Supported native applications include Delphi and RAD Studio, Free Pascal and Lazarus, C++ Builder, and Visual Basic 5.0/6.0.dotfixsoft.com · read 1 Oct 2026
- Trial
- The product page provides a download link labeled “Download free trial.”dotfixsoft.com · read 1 Oct 2026
- Virtualization
- Selected functions, conditions, and loops are moved into a custom virtual-machine instruction set or mutated while preserving behavior.dotfixsoft.com · read 1 Oct 2026
- Visual Basic support
- Visual Basic 5.0/6.0 form, module, class, control, event, and procedure names are rewritten with randomized identifiers.dotfixsoft.com · read 1 Oct 2026
