You will need to donwload and install the following software, in this specific order
1) Microsoft .NET 4.0 Framework
http://www.microsoft.com/download/en/co ... x?id=17851
2) Next Download and Install the .NET Framework 4.0 SDK
The Monodevelop Download page has the latest link to this file
See below for this link
3) Next Download GTK+ Sharp for .Net
This allows Programs designed to use GTK+ (Gimp Tool Kit) GUI to run on Windows.
The Monodevelop Download page has the latest link to this file
See Below for this link
4) Finally Download the Latest Version Of MonoDevelop
At the time of writing, the latest version of MonoDevleop is 2.8.6.5
The MonoDevelop Download Link can be found here
http://monodevelop.com/Download