Try giving the Web Anonymous user execute permissions on the subdirectory
containing the DLL...
C:\Program Files\Common Files\designer\ [MSDERUN.DLL]

This issue is VERY common, and I have seen many discussion threads regarding
the issue. I hope the above works!

"Devin Knutson" <devin@RemoveThiswebnw.com> wrote:
>Sounds to me like the DERuntime component is not properly registered on
the
>server. use the regsvr32.exe utility to register this component.
>
>HTH!
> -Devin Knutson
> -WebNW
>
>corey agard wrote in message <3854f748@NEWS.DEVX.COM>...
>>
>>I encounter this error in a new or existing web project built in Interdev.
>> I use the wizard to set up the HTML and ASP structure. I set up my
>startpage
>>with a recordset and and a grid that accesses this recordset. Everything
>>seems correct from the dataenvironment to the recordset and the grid.
>Could
>>this be a class in a dll or some other component that is missing from
our
>>Web Server of SQL Server.
>>
>>The error and code that generated it are listed below, your help is greatly
>>appreciated.
>>Thank you.
>>
>>
>>Server object error 'ASP 0177 : 800401f3'
>>
>>Server.CreateObject Failed
>>
>>/Project1/global.asa, line 32
>>
>>Invalid class string
>>
>>
>>Line s 32 and 33 of the global.asa file.
>>
>>Set DE = Server.CreateObject("DERuntime.DERuntime")
>>Application("DE") = DE.Load(Server.MapPath("Global.ASA"),
>"_private/DataEnvironment/DataEnvironment.asa")
>>
>
>