# Passing a variable value to my web.config
**URL:** https://www.finalbuilder.com/forums/t/passing-a-variable-value-to-my-web-config/4999
**Category:** Discussion
**Created:** [June 25, 2013, 9:17am UTC](https://www.finalbuilder.com/forums/t/passing-a-variable-value-to-my-web-config/4999 "2013-06-25T09:17:25Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@lalit](https://www.finalbuilder.com/forums/u/lalit)
#### Post date: [June 25, 2013, 9:17am UTC](https://www.finalbuilder.com/forums/t/passing-a-variable-value-to-my-web-config/4999/1 "2013-06-25T09:17:25Z")
Hi,
how to pass/poke a variable to my webconfig.
ex: After MSbuild i would like to pass the revision or changeset to my web.config, so that my application can read it from the web.config and display it on the application page.
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### Author:  [@davem](https://www.finalbuilder.com/forums/u/davem)
#### Post date: [June 26, 2013, 2:28am UTC](https://www.finalbuilder.com/forums/t/passing-a-variable-value-to-my-web-config/4999/2 "2013-06-26T02:28:57Z")
You have two options for updating a value in web.config file
1. If you have FinalBuilder, it includes several xml actions that you can use to change the correct value in the web.config file. You can create a FinalBuilder script that is solely responsible for updating the correct value in the web.config file.
2. Use the powershell action to change the selected value in the web.config. Create a powershell script that takes a parameter (ie. the revision number) and injects it into your web.config. For the powershell action, the Script arguments should look something like this: myRevisionNo=%myRevisionNo%
Check out this page for more information regarding injecting values into web.configs
[http://archive.arcware.net/2008/12/...owershell/](http://archive.arcware.net/2008/12/11/modifying-web-config-with-powershell/)