Thread #277883 in the VFP Forum may help.

>The Event Id:10000
>Source: Dcom
>Type: ERROR
>Category: None
>
>

Unable to start a DCOM Server: {B95059D9-6AAC-11D1-8632-00A0C903A97F}. The error:
>"%1 is not a valid Windows NT application. "
>Happened while starting this command:
>G:\Program Files\Microsoft Visual Studio\Vfp98\foxhhelp.exe -Embedding

>
>When in Foxpro if I push the F1 key for the foxhelp.chm file to open the event veiwer records this error.
>
>I have checked the Tools/option/file locations to make sure the helpfile listing is pointed to the correct file. I did a complete reinstall of VS 6, MSDN, VSSP4, Last WINNT SP6.
>
>Thank You in Advance!
>
>R D Black