| Software | Portable? | Free? | Notes | |----------|-----------|-------|-------| | (self-hosted) | No | Yes | Web-based, needs PHP/MySQL. | | Zoho Invoice | No (web) | Yes (up to 5 clients) | Modern, cloud, feature-rich. | | Wave Accounting | No (web) | Yes | Includes receipt scanning, payments. | | OpenOffice / LibreOffice Calc template | Yes (with portable suite) | Yes | DIY – build your own invoice spreadsheet. | | Manager.io (desktop) | No | Yes (single user) | More robust accounting, free desktop version. | | Express Invoice (free edition) | No | Limited free | NCH Software – restricts to 5 clients. |

For archival enthusiasts, retro-computing hobbyists, or those with no internet access, this release is a functional curiosity. For everyone else: back up your data, respect software licenses, and consider modern alternatives. Disclaimer: This article is for informational and educational purposes only. The author does not condone software piracy. Always use legitimate software licenses and verify the legality of portable repacks in your jurisdiction.