--- title: "Why am I receiving an \"Unable to locate required IIS components\" error when installing Acctivate mobile?" description: Acctivate Mobile WMS requires the Web Server (IIS) component of Windows Server.  The default options for the Web Server (IIS) contain most of the requirements for Acctivate.  You will receive an error --- [Skip to content](https://hub.acctivate.com/articles/web-server-requirements#main-content) [Go to Customer Portal](https://hub.acctivate.com/tickets?hsLang=en) ![Acctivate - A CAI Solution](https://hub.acctivate.com/hubfs/Images/Logos/acctivate-cai-logo-svg.svg) - [Knowledge Base](https://hub.acctivate.com/articles) Open main navigation Close main navigation - [Knowledge Base](https://hub.acctivate.com/articles) - [Go to Customer Portal](https://hub.acctivate.com/tickets) - [Support Resources / Create Ticket](https://acctivate.com/support) [Support Resources / Create Ticket](https://acctivate.com/support) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://hub.acctivate.com/articles?hsLang=en) 2. [Troubleshoot](https://hub.acctivate.com/articles/troubleshoot?hsLang=en) 3. [Mobile WMS](https://hub.acctivate.com/articles/troubleshoot?hsLang=en#mobile-wms) April 14, 2025 # Why am I receiving an "Unable to locate required IIS components" error when installing Acctivate mobile? Acctivate Mobile WMS requires the **Web Server (IIS)** component of Windows Server.  The default options for the Web Server (IIS) contain most of the requirements for Acctivate.  You will receive an error when attempting to install Acctivate Mobile WMS on your server if you haven't installed these components. These components can be installed via the **server manager or "turn windows features on/off."** Please follow the steps located on our [docs page](https://docs.acctivate.com/docs/ResourceInstallation.html#install-iis-components).   - [Getting Started](https://hub.acctivate.com/articles/getting-started?hsLang=en#main-content) - [Basics](https://hub.acctivate.com/articles/getting-started?hsLang=en#basics) - [User Interface](https://hub.acctivate.com/articles/getting-started?hsLang=en#user-interface) - [Manager windows](https://hub.acctivate.com/articles/getting-started?hsLang=en#manager-windows) - [List windows](https://hub.acctivate.com/articles/getting-started?hsLang=en#list-windows) - [Transaction windows](https://hub.acctivate.com/articles/getting-started?hsLang=en#transaction-windows) - [License and Users](https://hub.acctivate.com/articles/getting-started?hsLang=en#license-and-users) - [Email](https://hub.acctivate.com/articles/getting-started?hsLang=en#email) - [Getting Help](https://hub.acctivate.com/articles/getting-started?hsLang=en#getting-help) - 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[Vendors](https://hub.acctivate.com/articles/purchasing?hsLang=en#vendors) - [Customers](https://hub.acctivate.com/articles/customers?hsLang=en#main-content) - [Customers](https://hub.acctivate.com/articles/customers?hsLang=en#customers) - [Locations](https://hub.acctivate.com/articles/customers?hsLang=en#locations) - [Credit & Terms](https://hub.acctivate.com/articles/customers?hsLang=en#credit-terms) - [Pricing](https://hub.acctivate.com/articles/customers?hsLang=en#pricing) - [Broadcast Email](https://hub.acctivate.com/articles/customers?hsLang=en#broadcast-email) - [Sales](https://hub.acctivate.com/articles/sales?hsLang=en#main-content) - [Orders](https://hub.acctivate.com/articles/sales?hsLang=en#orders) - [Sales Order Manager](https://hub.acctivate.com/articles/sales?hsLang=en#sales-order-manager) - [Picking](https://hub.acctivate.com/articles/sales?hsLang=en#picking) - [Drop Shipments](https://hub.acctivate.com/articles/sales?hsLang=en#drop-shipments) - [Sales Tax](https://hub.acctivate.com/articles/sales?hsLang=en#sales-tax) - [Packaging](https://hub.acctivate.com/articles/sales?hsLang=en#packaging) - [Shipping](https://hub.acctivate.com/articles/sales?hsLang=en#shipping) - [Invoices](https://hub.acctivate.com/articles/sales?hsLang=en#invoices) - [Payments](https://hub.acctivate.com/articles/sales?hsLang=en#payments) - [Credits](https://hub.acctivate.com/articles/sales?hsLang=en#credits) - [Business Activities](https://hub.acctivate.com/articles/business-activities?hsLang=en#main-content) - [Business Activities](https://hub.acctivate.com/articles/business-activities?hsLang=en#business-activities) - [Business Alerts](https://hub.acctivate.com/articles/business-activities?hsLang=en#business-alerts) - [QuickBooks](https://hub.acctivate.com/articles/quickbooks?hsLang=en#main-content) - [Basics](https://hub.acctivate.com/articles/quickbooks?hsLang=en#basics) - [QuickBooks Online](https://hub.acctivate.com/articles/quickbooks?hsLang=en#quickbooks-online) - [QuickBooks Desktop](https://hub.acctivate.com/articles/quickbooks?hsLang=en#quickbooks-desktop) - 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