TL:DR; COM library for Visual Basic 6, providing functionality to retrieve emails from mailserver (POP3).
Download OstroSoft POP3 Component Freeware - Rating: 3.56
AES Encryption library provides a simple interface to encrypt/decrypt files, strings or data from Visual Basic programs using 256-bit AES (Rijndael) encryption keys. Supports CBC and ECB mode, initialization vectors, and buffer padding. Win32/Win64.
COM library for Visual Basic 6, allowing to create custom ping and traceroute implementations.
Do you still use Visual Basic 6? If so, you can try VB 6 Pure Code Lines Calculator! It is a 100% FREE CASE tool for VB6. Use it to calculate PURE code lines (writing manually) for VB6 project with the automatic version history recording feature.