For those of you who have the Steam version of Shadowman you are probably having issues getting the game to play in fullscreen. Well of course I come again with a fairly simple fix.
First download the Windows ADK for Windows 10 version 1703 Compatibility Kit available here: https://developer.microsoft.com/en-us/windows/hardware/windows-assessment-deployment-kit. Install Application Compatibility Kit you won't need the rest so don't worry about clicking all that.
Now open the Compatibility Administrator 32bit version from Windows Kits from the start menu.
Right click "New Database" next create new then application fix.
Next select the name of the game and the company vendor then click next. Don't select anything here just click Next again and scroll down until you see the following and click it and press Next.
At this Window just click Auto Generate and then Finish
Next your going to want to save by clicking the save button up at the top. Name your database and name the save file. After that you go to file and click install.
Now all you have to do is click exit and play your game and your ready to play in fullscreen glory.