WinAsm Studio, The Assembly IDE - Free Downloads, Source Code

WinAsm Studio is a free IDE for developing 32-bit Windows and 16-bit DOS programs using the Assembly Language. It is a MUI application already translated to many languages and includes a Visual Resource Editor for rc scripts. Highly extensible via user created Add-Ins (aka plug-ins). A lot of free (most of which are open source) projects (such as HiEditor, a large file editor), custom controls to download, a popular programming forum and a link directory to add your site.