The Expression Builder box should be empty unless you're using custom Expression Builder. The envmgr.app is environment manager, not Expression Builder.

>I'm really at my wits end! I don't know what happened to my VFP 8.0, it seems corrupted.
>
>At first, while in Data Session window, with two simple tables open, I click on Relations, select a table, I get "Must specifiy additional parameters." I click on Ignore, I get "Alias 'ENVMGR' is not found." I checked File Locations in Tools/Options, File Type Expression Builder has "c:\program files\microsoft visual foxpro 8\envmgr.app" so it should be fine. (By the way, setting the relationship manually in the Command window works fine.)
>
>It's the same problem in View Designer, I get the same error message "Must specify additional parameters" when attempting to use the Expression Builder. After clicking Ignore, I get "Variable 'CACTION' is not found."
>
>Even in the Form Designer, in a expression builder dialog, I get the same error message, and after clicking Ignore, I get the Environment Manager dialog screen. Looks like there's a problem with the ENVMGR.APP...???
>
>I ran VFP Setup in attempt to fix the problem. It did not find any problem but the problem still persisted. So I uninstalled VFP and reinstalled it. STILL THE PROBLEM PERSISTS. Why is this happening and what can I do to fix this problem?!
>
>I'd really appreciate any help! TIA...