Thank you for your response but I need to learn more JavaScript before I can use you example.

The request was for client side explorer but I think I will have to use server side. Thank you.

I found that if  I create a link

<a href="C:\TEMP">Open folder</a>

When the user press the open folder windows explorer will open to c:\temp.

Now I need to create the link dynamically using the content of the input box.