2] Open DLL Files in Windows using Microsoft Visual Studio If you have Microsoft Visual Studio installed on your Windows PC, you may use it to open, view, or modify DLL files.

Launch Microsoft Visual Studio, and open one of your C# Winform projects. Move to the Solution Explorer, and double-click your project's startup form to view it in design mode.

Although still in development and with much of its classic features still to add, the open source ClippyVS v0.1 is available as a Visual Studio extension (no word if it will come to Mac OS in the ...