> For the complete documentation index, see [llms.txt](https://cardknox.gitbook.io/sola-dev-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cardknox.gitbook.io/sola-dev-docs/resources/downloads.md).

# Downloads

Download links for Sola SDKs and plugins.

## Updater app

Use the [**Updater app**](https://cdn.cardknox.com/dl/updater.exe) to download **Payment Engine (.NET SDK)** builds for Windows—across release type (stable, beta, alpha), program version, OS, and .NET target—and the same tool is used for several **plugin** installers below. On Windows, right-click the downloaded file, choose **Run as administrator**, and approve the prompt.

When the updater asks for the **software name**, use:

| Software name      | What it downloads                                                                                                 |
| ------------------ | ----------------------------------------------------------------------------------------------------------------- |
| `paymentengine`    | [.NET Payment Engine SDK](/sola-dev-docs/integration/sdks/sdks-payment-engine-sdk/sdks-payment-engine-sdk-net.md) |
| `fidelipayrms`     | [Retail Management System (RMS)](/sola-dev-docs/integration/plugins/plugins-retail-management-system-rms.md)      |
| `PaymentEngineRMH` | [Retail Management Hero (RMH)](/sola-dev-docs/integration/plugins/plugins-retail-management-hero-rmh.md)          |

Then pick release type, version, OS, .NET (for Payment Engine), and a download folder. For step-by-step screenshots and troubleshooting, follow the [.NET SDK](/sola-dev-docs/integration/sdks/sdks-payment-engine-sdk/sdks-payment-engine-sdk-net.md) or plugin guide you need.

## SDKs and builds

| Product                     | All versions / downloads                                                                                                                                                           | Documentation                                                                                                |
| --------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| **.NET Payment Engine SDK** | Use [Updater app](https://cdn.cardknox.com/dl/updater.exe) with software name `paymentengine`. **Direct download:** [Developer Portal — SDK](https://solapayments.com/sdk/#unlock) | [.NET SDK](/sola-dev-docs/integration/sdks/sdks-payment-engine-sdk/sdks-payment-engine-sdk-net.md)           |
| **iFields**                 | [iFields](https://cdn.cardknox.com/ifields/versions.htm)                                                                                                                           | [iFields](/sola-dev-docs/integration/integration-models/hosted-payment-fields/integration-models-ifields.md) |
| **BBPOS** (browser POS)     | [BBPOS installer](https://cdn.cardknox.com/dl/bbpos.exe) — current public build (no separate version index on the CDN).                                                            | [BBPOS](/sola-dev-docs/integration/sdks/sdks-payment-engine-sdk/sdks-payment-engine-sdk-bbpos.md)            |
| **Android SDK**             | [Android SDK](https://cdn.cardknox.com/sdk-android/versions.html)                                                                                                                  | [Android SDK](/sola-dev-docs/integration/sdks/android-sdk.md)                                                |
| **iOS SDK**                 | [iOS SDK](https://cdn.cardknox.com/sdk-ios/versions.html)                                                                                                                          | [iOS SDK](/sola-dev-docs/integration/sdks/sdks-ios-sdk.md)                                                   |

### Verify downloads

Before you install a downloaded file, confirm its **SHA-256** hash. See [Verify downloads (checksums)](/sola-dev-docs/resources/downloads/checksum.md).

## Plugins

| Plugin      | Installation Link/Method                                                                    | Documentation                                                                                                |
| ----------- | ------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| WooCommerce | [Sola Payment Gateway for WooCommerce](https://wordpress.org/plugins/woo-cardknox-gateway/) | [WooCommerce](/sola-dev-docs/integration/plugins/plugins-woocommerce.md)                                     |
| Magento     | [Cardknox Payment Gateway Magento](https://marketplace.magento.com/cardknox-cardknox.html)  | [Magento](/sola-dev-docs/integration/plugins/plugins-magento.md)                                             |
| RMS         | [Updater app](https://cdn.cardknox.com/dl/updater.exe) — software name `fidelipayrms`       | [Retail Management System (RMS)](/sola-dev-docs/integration/plugins/plugins-retail-management-system-rms.md) |
| RMH         | [Updater app](https://cdn.cardknox.com/dl/updater.exe) — software name `PaymentEngineRMH`   | [Retail Management Hero (RMH)](/sola-dev-docs/integration/plugins/plugins-retail-management-hero-rmh.md)     |
| NetSuite    | Install from NetSuite SuiteBundler by searching for `xPayment` and `xPaymentBeta`           | [NetSuite](/sola-dev-docs/integration/plugins/plugins-netsuite.md)                                           |

## Plugin install notes

* WooCommerce installs from the WordPress plugin directory.
* Magento installs from Adobe Commerce Marketplace.
* RMS and RMH use the **Sola Updater** with the program names above; full steps are in each plugin guide.
* NetSuite is installed by a NetSuite administrator from SuiteBundler rather than from a downloadable package. The `xPayment` and `xPaymentBeta` bundles are searchable only after Sola Support makes them available to the merchant's NetSuite instance.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://cardknox.gitbook.io/sola-dev-docs/resources/downloads.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.