[Zope] installation

Hi, Could I install Zope on the same PC as another software package that uses Zope as infrastructure? I am using Windows XP as my operating system. I want to run two packages on my computer, NOT simultanously. One pack is 'Zope', I downloaded 'Zope-2.6.2-win32-x86.exe' and installed it according to the instructions. The other package is software that using Zope as infrastructure. I installed this software first. When I run it, it opens a webpage with 'localhost:8080'. When I terminate the program, and then try to run zope. Nothing happen. Both packages are installed in my 'program files'. Thanks for your ideas. Justin