Windows developer libraries & decryption tools for professionals

GetDiskSerial DLL, TGetDiskSerial VCL, DecryptSQL, DecryptAccess and DecryptPDF — small, reliable utilities trusted by developers and database administrators worldwide since 2002.

✓ Free trials for every product ✓ Windows XP–11 support ✓ Free technical support
Our products

Two product lines, one goal: get real work done

Development libraries to read genuine hardware identifiers, and decryption utilities for developers and DBAs working with their own files and databases.

GetDiskSerial DLL box shot
Development library

GetDiskSerial DLL

A standard Windows DLL that reads the real hard-disk serial number from your application — no admin rights required.

DecryptSQL box shot
Decryption tool

DecryptSQL

View the full T-SQL of SQL Server objects encrypted with “WITH ENCRYPTION” — for research, study and recovery.

DecryptAccess box shot
Decryption tool

DecryptAccess

Recover lost or forgotten passwords for your own Microsoft Access databases — instantly, at any length.

DecryptPDF box shot
Decryption tool

DecryptPDF

Remove owner-password restrictions from your own PDF files so you can edit, print and copy again.

Why Devlib

Built for developers, by developers

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Genuine results

GetDiskSerial reads the real factory serial number of the drive — not the volume ID or partition ID that changes when you reformat.

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Simple to integrate

Drop-in DLL and VCL with ready-made examples for Delphi, C#, VB.NET, Visual Basic, C++, PowerBuilder and more.

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Global & multilingual

Used in over 100 countries, with multi-language support across our decryption tools and English-language documentation.

Trusted by

Engineering & IT teams at leading organizations

Texas Instruments Deloitte Swisscom Siemens Samsung Procter & Gamble TELUS PRGX Global Access UK MarketLive

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Every Devlib product has a free trial. Download, install and test in minutes.