If you only need to decompile modern .NET binaries, a free tool like dotPeek or ILSpy may be sufficient. For anything involving classic VB 6, VB Decompiler Pro 11 is arguably the best‑in‑class solution.
| Test Scenario | File Size | Decompilation Time (average) | Peak RAM | |---------------|-----------|-----------------------------|----------| | Simple VB 6 EXE (≈ 300 KB) | 0.3 s | 30 MB | | Large VB 6 app with many forms (≈ 5 MB) | 4.8 s | 120 MB | | VB .NET assembly (≈ 2 MB) | 1.2 s | 80 MB | | Packed VB 6 binary (≈ 7 MB) | 6.5 s (including unpack) | 150 MB | vb decompiler pro 11 full mega exclusive
The tool is CPU‑bound but well‑optimized; modern multi‑core CPUs see near‑linear speedup when decompiling many files in parallel (via the batch mode). If you only need to decompile modern
Overall, the interface feels polished and is intuitive even for users new to binary analysis. | Test Scenario | File Size | Decompilation