Web app install

Hello,
I am trying to use NSIS to make an installer for a web app. When the user install the app, I need to know where they want to install the app folder and where Tomcat is located. The first part is stright forward but I don't know how to bring up another dialog box asking for Tomcat. Could someone help me with this? Thanks.

You'd need to create an InstallOptions page with a DirRequest field (see Contrib\InstallOptions).
Or if you can, try and find out if it is installed from the Windows registry (by using ReadRegStr).

-Stu

Thanks!