Installation:<br />

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<div style='float:left;' class='liste_li'><ul class='simple'><li>Extract the content of the zip file to your SteamSteamAppscommonSkyrimData folder (or extract only the plugin you really want)</li></ul></div><div class='clearer'></div>
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<div style='float:left;' class='liste_li'><ul class='simple'><li>Locate the file C:Users{your user name}DocumentsMy GamesSkyrimSkyrimPrefs.ini. Open it and search for the [Launcher] section. Add this line: "bEnableFileSelection=1" (without quotes). Then start the Skyrim launcher, the previously greyed out "Data Files" option is now available and you can select the plugin(s) that you wanna use from the list.</li></ul></div><div class='clearer'></div>
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If this somehow doesn't work, use this workaround:<br />

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<div style='float:left;' class='liste_li'><ul class='simple'><li>Locate the file C:Users{your user name}AppDataLocalSkyrimplugins.txt. The Appdata folder is hidden so make sure that your OS shows hidden files. Edit plugins.txt and insert a new line that contains the name of the plugin that you wanna use, like this:</li></ul></div><div class='clearer'></div>
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<br />

# This file is used by Skyrim to keep track of your downloaded content.<br />

# Please do not modify this file.<br />

Skyrim.esm<br />

Sprint4.esp<br />

<br />

Ignore the comment about modifying this file and save it. Then right-click the file, select Properties, and enable Read-Only. If you wanna use other plugins too, disable Read-Only and add their names to the list, then re-enable Read-Only.