VBA

Microsoft Office is a great set of building blocks on which to build software with VBA. Toolsack Baseline is a set of COM objects will allow you to write even more powerful applications.

DLLLoader

Loads DLLs, perfect for loading DLLs into Excel without relying on the path.

Email

Send SMTP mail from your app. The SMTPMail component is very powerful, it can send alternate bodies, HTML bodies with embedded pictures, different chararcter sets and more. See the documentation for the api.

TypedLists

Typed collections with specific types - Strings, Numbers, Doubles and Objects to make writing code simpler and more reliable.

Sockets

Simple objects that make it very easy to use TCP sockets. Much easier to use than most other WinSock objects.

Stopwatch

Time things down to micro seconds.

GMT

Easy to convert to GMT and back.

FileIO

Object that makes loading and saving files much simpler.

SpecialFolders

An object that makes it easy to find out the important directories on a computer - temp, system, windows, program files, desktop and more.

HTTPFetcher

Makes it easy to download data from Web Servers. URLFetcher also works with ftp, https.

COMInstaller

Installs self-registering COM DLLs. A COM replacement for regsvr32.