problem instaling Ground2K4

Hi folks,I am new to this forum. I have been searching for an answer to this question, but all attempts have failed.When I try to install Ground 2k4 v5, I get the following error message in a popup window when I click the setup.exe icon:"Cannot find file: C:ground2k4_v5SETUP.EXE (or one of its components). check to ensure the path and filename are correct and that all required libraries are available." In the title bar of the window it reads "Can't run 16-bit Windows program." I'm not sure why this is happening. I tried installing an older version, thinking that the install program was looking for a folder, or a registry entry, or something, from an earlier version. So I tried to install v2 (the oldest one I could find), and I got the same error message. I read that one needs to install the appropriate .dll and .ocx files first. I did that (from ground2k_v40_dll.zip), and still can't install ground2k4.Any advice for resolving this problem would be greatly appreciated.Take care,