# Installation

### **Download the Plugin**

Building Information Model Climate Action Tool (bimCAT) is delivered as an **msi** installer for Windows.

It comes in two versions:

* [BIM Climate Action Tool (bimCAT)](https://docs.bimcat.org/user-manual/installation/tally-climate-action-tool-tallycat)
* [BIM Climate Action Tool (bimCAT) Community Edition](https://docs.bimcat.org/user-manual/installation/tally-climate-action-tool-tallycat-community-edition)

Only one of them could be installed on your PC at a time. In terms of functionality, the only difference between them is the **About** window and the source of update. Also, **BIM Climate Action Tool (bimCAT)** always installs on the per-machine basis while **BIM Climate Action Tool (bimCAT) Community Edition** allows you to choose the installation scope.

If you right-click the MSI installer of either plugin version and view its properties, you may find the version number in the **Details > Subject** field.

<figure><img src="https://979736188-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnnfiqwqMJpMWTZIHDlMz%2Fuploads%2Fgit-blob-4e19913b3abca909456afe8ea8fc2de1fc9b7183%2Fimage%20(61).png?alt=media" alt=""><figcaption></figcaption></figure>

**Close Revit before installing**

Please make sure that the Autodesk Revit application is not running while you are installing the plugin!

**Install the plugin**

Open the .msi file to start installation.

![](https://979736188-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnnfiqwqMJpMWTZIHDlMz%2Fuploads%2Fgit-blob-ba0920be522e528a0126bf45fc22f2958c8b6ba4%2Fimage%20\(64\).png?alt=media) ![](https://979736188-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnnfiqwqMJpMWTZIHDlMz%2Fuploads%2Fgit-blob-56e39691195f80a0f4e209539736c4592468d676%2Fimage%20\(66\).png?alt=media)

The installation currently offers Revit 2025, Revit 2024, Revit 2023, Revit 2022, Revit 2021 versions of the plugin; choose the version of Revit you are using.

<div align="left"><figure><img src="https://979736188-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnnfiqwqMJpMWTZIHDlMz%2Fuploads%2Fgit-blob-15b53b16395f09399379cadfe04ffbdb49fe85f9%2Fimage%20(67).png?alt=media" alt=""><figcaption></figcaption></figure></div>

The installer is **signed**, and the plugin is compatible with **Autodesk Store Bundle** format, so Windows shouldn’t display any warnings during the installation process or when Revit starts.

**Uninstalling the Plugin:** BIM Climate Action Tool (bimCAT) will appear in the Windows Apps & features (Installed apps) screen, where you can uninstall it like any other application.

<figure><img src="https://979736188-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnnfiqwqMJpMWTZIHDlMz%2Fuploads%2Fgit-blob-35d47292f5f189ca1a1d57c0467b7d79ba6c41cb%2Fimage%20(171).png?alt=media" alt=""><figcaption></figcaption></figure>

For documentation on exactly what the installer does see [Appendix 1: Installer](https://docs.bimcat.org/user-manual/appendix-1-installer).