twinBASIC Monthly Challenge #1

Self-Contained Diagnostic Tool
Build a self-contained Windows diagnostic tool using twinBASIC.
Your tool should report useful information about the system it is running on.
There is no single correct output - different approaches and interpretations are expected.

Prize
- GBP100 twinBASIC account credit
- (non-transferable, no cash alternative, can only be used towards future twinBASIC licences)

Requirements
Built using twinBASIC
Submission must be a single .twinproj file
Produces a single Windows EXE
Runs on Windows 10 and later
No admin rights required (optional enhanced output when elevated)
No external dependencies
(Built-in twinBASIC packages and built-in OS / WinAPI features only)
Output may be console or GUI

Diagnostic content
Report information from at least three distinct categories.

Examples:
OS version / build
CPU information
Memory usage
Disk information
Process information
Environment variables
System uptime
Locale / codepage
Network configuration
Installed runtimes (e.g. .NET)

Judging
Entries will be judged across multiple categories, including:
Usefulness of reported information
Performance
Smallest EXE size
Well-documented or self-documenting code
Interesting or clever use of APIs
Derived or inferred system metrics
Overall elegance and polish
Bonus points may be awarded for:
Use of newer twinBASIC features (e.g. delegates, generics)
Particularly clean or insightful design
Winner selected at the sole discretion of the twinBASIC team.

Deadline
Saturday 31st January 2026
Submissions will be locked after the deadline.