How to use it : http://www.pinvoke.net/search.aspx?search=KernelIoControl&namespace=[All][^] Why it's not working in PC : http://social.msdn.microsoft.com/Forums/en-US/netfxcompact/thread/ee901826-52fc-4427-9851-4dd05597c107[^]

You have to add reference to yr application's bin folder by right click on that and click "Add Rererence" OR If yr dll in System32 folder then use below code: First include below namespace using System.Runtime.InteropServices; and then give dll reference as shown below. [DllImport("dllName.dll")] public static extern (function datatype) DllFunctionName(); Hope It will help u. Krishnraj

Sql server must be installed on the machine that you are running your program in order for you to be able to load and use SQLDMO. You will need to install it on the SQL Server machine, not just any arbitrary server.

You might want to look for editable combobox with multi columns instead. Regards, Thomas Stockwell Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. Visit my Blog

SelvaSR wrote: but nothing is thr for multicolumn autocomplete textbox possibly not, but then your original post never mentioned multicolumn did it, so why expect anyone to know that was what you wanted? However, a search on google for multicolumn autocomplete only returned around 29,000 results, the first 2 of which are articles here on CP, so I guess it would be difficult for you to find some ready written code, which I suspect you are really after. Bob Ashfield Consultants Ltd