I remember getting the same message when I first started using HTML Help Workshop - I had about 120MB free on C and the file I was compiling was pretty small. I moved it to my F: drive with 3GB free and don't remember seeing the problem after that. Have you tried putting it on your local drive ?

Rob
>I am tring to convert old Windows Help files to HTML Help format. I opened the old Windows Help Project in HTML Help Workshop and it seemed to convert the files fine, but then when i went to compile the new project i get the following error messages:
>

>
>Microsoft HTML Help Compiler 4.72.7352
>
>Compiling f:\AMERITEC\Ameridev.400\Help\configurator.chm
>
>    HHC6000: Error:
>	An error occurred attempting to create an internal file. Make certain there is enough disk space on the drive where you are compiling your file.
>    HHC5007: Error:
>	Fatal Navigational Compilation Error. This is likely the result of an invalid .HHC file.
>
>
>The following files were not compiled:
>
>

>and that is all. I have already checked the drive space on my local drive (1Gb free) and the network (f:) drive (160 Mb free). Any Help would be appreciated! Thanks.