There was a download of DocProject 1.11 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of the free software is CodePlex.
The tool is sometimes distributed under different names, such as "DocProject 2008 Beta 2", "DocProject 2008 Beta". The program is categorized as Development Tools. The most popular versions of the DocProject 1.8 and 1.1. The program's installer is commonly called DocProject.exe or _85E26C1242D9FC58D86E8A.exe etc.
From the developer:
DocProject drives the Sandcastle help generation tools using the power of Visual Studio 2005/2008 and MSBuild. Choose from various project templates that build compiled help version 1.x or 2.x for all project references.
DocProject facilitates the administration and development of project documentation with Sandcastle, allowing you to use the integrated tools of Visual Studio to customize Sandcastle's output.
You may want to check out more software, such as GnuWin32: LibIconv, SpinnerDemo or FrameDemo2, which might be related to DocProject.