http://blogs.msdn.com/b/junfeng/archive/2006/07/27/680539.aspxOnce you have an assembly loaded, you can use Assembly.GlobalAssemblyCache Property to determine if the assembly is loaded from GAC or not. I am surprised that not many people know about this property.en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/junfeng/archive/2006/07/27/680539.aspx#684600Tue, 01 Aug 2006 02:18:54 GMT91d46819-8472-40ad-a661-2c78acb4018c:684600Junfeng ZhangWhy can't you embed those files as resources inside the assembly? <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=684600" width="1" height="1">http://blogs.msdn.com/b/junfeng/archive/2006/07/27/680539.aspx#684079Mon, 31 Jul 2006 16:41:22 GMT91d46819-8472-40ad-a661-2c78acb4018c:684079EssamWhen I develop DLLs , I usally add some helper files in the same folder for the DLL, like XSLT and config files for example. <br> <br>Adding the DLL to the GAC makes me unable to do that any more , I wonder if you can advice about this issue<div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=684079" width="1" height="1">http://blogs.msdn.com/b/junfeng/archive/2006/07/27/680539.aspx#681088Fri, 28 Jul 2006 06:24:41 GMT91d46819-8472-40ad-a661-2c78acb4018c:681088Jason Haley<img src="http://blogs.msdn.com/aggbug.aspx?PostID=681088" width="1" height="1">