To install the AEVCGI you need a Windows 9x/NT-Server. Installing AEVCGI is simple provided you know your way around your web server; the instructions given here are for Microsoft's Peer Web Services (IIS-jnr) and assume you will be creating the form with Microsoft FrontPage, however the process is very similar on other systems.

The AEVCGI executable (aev.dll or aevcgi.exe) and aevcgi.ini must be copied into the cgi-bin directory for your web server. In the default PWS setup, this directory is

c:\INetPub\wwwroot\cgi-bin

The location may be different on your system, however. This is the only step needed on the server side to install AEVCGI. If you are using FrontPage, it should automatically notice a new addition to your cgi-bin directory (if not, just Recalculate Links and it should appear in the tree on the left of the FrontPage Explorer window).

Make sure the access permission for executing aev.dll or aevcgi.exe in this directory is set. Without this permission you will get an error message like: 501 Not Implemented

For example, how to setup Microsoft Internet Information Server (IIS) for running AEVCGI:

1. Open the Internet Service Manager.
2. Setup access permissions for the directory containing AEVCGI
3. Set "Execute" permissions for the directory, "Script" is for scripts. "Execute" enables applications to run in this directory (.dll and .exe files).

If you have a virtual web host, please upload AEVCGI files (aev.dll or aevcgi.exe and AEVCGI.INI) in your CGI-Folder. The CGI-Folder must be declared by you or your WebPages - Provider as CGI-Folder with "Execute" permissions.

Depending on whether you may or may not use WinCGI or ISAPI/NSAPI scripts, you should use aevcgi.exe (WinCGI) or aev.dll (ISAPI/NSAPI) and aevcgi.ini (configuration file).

aevcgi.exe is a WinCGI application that launches its own process for every query.

aev.dll is a ISAPI/NSAPI application that is loaded once. Being loaded, it returns unlimited queries. It works as a part of Web server process in the same memory slack. Instead of transferring information as files, it can easily transfer information within the same address space without writing it to a file. Thanks to this, aev.dll works faster, more effectively and requires less resources than aevcgi.exe.