# How to enable add-ins downloaded from the Internet

**URL:** <https://tech-community.robotics.abb.com/t/how-to-enable-add-ins-downloaded-from-the-internet/5166>\
**Category:** RobotStudio\
**Created:** [October 30, 2012, 8:55am UTC](https://tech-community.robotics.abb.com/t/how-to-enable-add-ins-downloaded-from-the-internet/5166 "2012-10-30T08:55:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Henrik\_Berlin](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/henrik_berlin/32/1011_2.png) [@Henrik\_Berlin](https://tech-community.robotics.abb.com/u/Henrik_Berlin)\
**Post date:** [October 30, 2012, 8:55am UTC](https://tech-community.robotics.abb.com/t/how-to-enable-add-ins-downloaded-from-the-internet/5166/1 "2012-10-30T08:55:40Z")

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Due to a security limitation in Windows, add-ins downloaded from the Internet (e.g. the forum or RobotApps) are blocked by Windows. RobotStudio will show a FileLoadException in this case.

There are two solutions to this problem

**1. Unblock the .dll using Windows Explorer**

Right-click the .dll in Windows Explorer → Properties → Unblock → Apply.

The change is specific to the download dll. The operation must be carried out for all downloaded .dlls

**2. Modify the app config file**

For a general solution that will allow any downloaded dll to work directly without proceeding as above, you can add the following lines to the file RobotStudio.exe.config:

File RobotStudio.app.config:

\<?xml version="1.0" encoding="utf-8" ?\> ...

On a PC with a default installation of Windows 7 - 64 bit, the files are located in the folders

C:Program Files (x86)ABB Industrial ITRobotics ITRobotStudio 5.15Bin  
C:Program Files (x86)ABB Industrial ITRobotics ITRobotStudio 5.15Bin64

_ **Note** There are separate files for the 32 and the 64 bit versions of RobotStudio_

Windows security settings may prevent the file from being directly edited in the default location. Copy the file to your local Documents folder to edit it. Upon completion, you need to manual copy the file back to its original location.

For detailed information, see [http://go.microsoft.com/fwlink/?LinkID=155569](http://go.microsoft.com/fwlink/?LinkID=155569)

_ **Note:** After upgrade, or re-installation of RobotStudio, the file will revert to the default._

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<div class="post-metadata">

**Author:** ![TheAmazingZar](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/theamazingzar/32/4384_2.png) [@TheAmazingZar](https://tech-community.robotics.abb.com/u/TheAmazingZar)\
**Post date:** [November 29, 2012, 4:09am UTC](https://tech-community.robotics.abb.com/t/how-to-enable-add-ins-downloaded-from-the-internet/5166/2 "2012-11-29T04:09:30Z")

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Excellent, thank you. Solution 2 worked for me.

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**Author:** ![sydneysider](https://avatars.discourse-cdn.com/v4/letter/s/f04885/32.png) [@sydneysider](https://tech-community.robotics.abb.com/u/sydneysider)\
**Post date:** [January 4, 2013, 2:35pm UTC](https://tech-community.robotics.abb.com/t/how-to-enable-add-ins-downloaded-from-the-internet/5166/3 "2013-01-04T14:35:22Z")

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Thanks - I’ve been having this issue.

I’ll try your solution.