Features and limitations

Develop .NET-based Add-Ins directly from within Office (just like VBA).
A source control is built-in so that from any computer with Microsoft Office, after authentication, you can access and modify the source code of an add-in. You can also easily revert to a previous version of an Add-In.
Test the changes to the source code of an Add-In without restarting Office (and most of the times even without restarting the Add-In itself).

Automatically deploy an Add-In (or an update) throughout the company.
End-users can automatically receive updates and new add-ins without restarting Office and without closing their current document.
End-users can see the list of all the available Add-Ins in the company and pick up only the Add-Ins they need.
End-users can have multiple versions of the same add-in.
Add-Ins are downloaded only when needed (streaming).

The code is compiled (not interpreted) and is able to access all the resources and the features that Visual-Studio-developed add-ins can access.
Create user-interfaces with a built-in WPF interface designer (WinForms is also supported but no interface designer is included yet).
Write code in C# (and VB.NET soon).
Support for the full .NET Framework.
Add extensibility to your Add-Ins, so that end-users can customize or expand them.

Decide who in the company has the right to execute what.
From any workstation, instantly see the source code that corresponds to one of the installed Add-Ins (directly from within Office) (after authentication).
From any workstation, instantly see the Change Log (i.e. history of modifications) of any of the installed Add-Ins (directly from within Office) (after authentication).
Optionally, require validation by a particular group before deploying an Add-In to the whole company.

Add-ins that are written in languages other than C# (and soon VB.NET) cannot be included into this system (but they can still be distributed separately or side-by-side)
Add-ins for which you don't have the source code cannot be included into this system (but they can still be distributed separately or side-by-side)
The following features are still under development and will be included in upcoming releases:
- An advanced step-by-step debugger
- Support for more advanced C# language features
- Support for VB.NET
- Support for running the solution while in offline mode

Improved support for WinForms (no built-in interface designer is available yet) (but WPF is already supported and has an interface designer)
Better packaging and fine-tuned integration with ActiveDirectory

Please feel free to contact us for more information concerning any of the features/limitations above.