Hi,
I built libhttrack.dll and webhttrack.exe from the sources obtained from
httrack-noinst-3.47.24.zip  on Windows 7 platforms using Visual Studio 2008.
Here the steps:
1.Convers Visual Studio 6 dsw to  sln
2.Remove htsnostatic.c from build and add missing 6 or 7 c and h files to
project
3.After successful build 
C:\temp>webhttrack.exe C:\temp
Initialzing the server..
Okay, temporary server installed.
The URL is:
URL=http://vloubenski0022:8080/
unable to find lang.def and/or lang/ strings in C:\temp
Unable to create the server: No such file or directory
Done
EXITED
I added lang.def and lang/ to C:\temp from release project but I doesn’t help