Thanx! It works perfectly now (you immediately see the result). So for all who want to change the desktopwallpaper, the "final" code is: [DllImport("user32.dll")] public static extern bool SystemParametersInfo (uint uiAction, uint uiParam, string pvParam, uint fWinIni); ReturnValue=SystemParametersInfo(0x0014,0,"FILENAME",0x0002); Mario

Hello. Solved it with: // Create Bitmap Bitmap TestBitmap = new Bitmap(16,16,PixelFormat.Format32bppArgb); // Draw whatever you want for (int i=0; i<16; i++) TestBitmap.SetPixel(i,i,Color.Red); // Show as Icon IntPtr PtrIcon = TestBitmap.GetHicon(); this.MyTrayIcon.Icon = Icon.FromHandle(PtrIcon); MyTrayIcon is a "NotifyIcon", Other PixelFormat may be better, This is just a code-snipped... Mario

Mario, I bought the standard version as well and ran into the same issues you have. There are quiet a few templates that are missing. However, after doing some searches, MS has claimed that they inadvertently left of some of the templates in the standard edition and will be providing an update (Not sure which templates they are referring to). With that said some people have found ways to add various templates back in. Here is a link for the class library template. It works great. http://groups.google.com/groups?hl=en&lr=lang\_en&ie=ISO-8859-1&oe=ISO-8859-1&th=1610d3f841479209&rnum=1 In response to your questions, you can create libraries and controls, it's just a manual process. The templates make things much easier

I'm pretty sure the figure came from the DOTNET mailing list from either someone at MS or John Lam who did a lot of different tests regarding IL -> x86 generation; I'm leaning towards it being John because that would have been the context to get the figure out. If thats the case the 80-90% figure is comparing the x86 code that the JIT produces versus the C++ x86 code that is produced. James Simplicity Rules!