Hi, I'm using WTSOpenServer (P/Invoke in a C# application) to open a handle to a specified terminal server which is Win2003 Server Domain Controller. The function is returning NULL (or 0). I'm able to connect successfully to the terminal server when using the remote desktop...more >>

Why is the IDE not letting me compile with an instance of an unmanaged type library COM object? It tells me that the type library needs a strong name? I did not think this was necessary for unmanaged type libraries... How do I fix this, since I cannot modify the type library itself. Andr...more >>

I've installed Visual Studio .NET 2003 on my Windows 2000 machine. I installed IIS also. It serves up HTML and .ASP pages but will not work with asp.net pages (.asmx). As a matter of fact, when I try to create a new c# or VB ASP.NET webservice or application, I get the following error: "Visual...more >>

Is it alright to add a reference to shell32.dll and then use the objects in that namespace, like: Shell32.FolderItem ? (and then distribute the app to various windows operating systems) The reason I ask, I created an app that does this, and when I transfer the code to a project with stric...more >>

If we do late binding of office it appears we need to be able to do something like if (Office xp) else if (office 2003) In C++ I would use #ifdef How do I do this for Office versions in C#.Net thank you mark ...more >>

Is there an example showing how to do this. We do not want a different project for each version of office, the opportunity for inconsistencies between versions will be a problem in the long run. Alternatively is there a way to build for different versions in Visual Studio .Net by creating m...more >>

I have written a class in c# and the assembly is registered as a com object. When I use this assembly fron a .net windows app it works great, and if the assembly throws an exception it is caught by the .net winform app. When I use this assembly from Excel, Excel will report an exception "Excepti...more >>

I'm following the code here http://support.microsoft.com/default.aspx?scid=kb;en-us;313788 but this build error in VS Studio .NET: 'Application' is ambiguous in the namespace 'Outlook' The code is Dim oApp As Outlook.Application = New Outlook.Application() Any suggestions? Thanks, ...more >>

I have a VB.Net app that creates a Word.Application and Word.Document object. It loads a Word document. However, in my cleanup code when the user closes the window, I call the Quit method the Word.Application object and set the objects to nothign. This works fine except if the user closes Word...more >>

Hi I'm automating Word in my VB.NET Windows Forms application, and I'm hitting a problem when the application is used with Word 2000. To access the Word functionality, I created a reference to the Word 97 type library (we support all versions from 97 onwards). I then have some code that cre...more >>

Hi! When developing .net applications that will use office, do you have to target a specifik office version (like office 2000) or does it work with several office versions? Example, if I create an application that uses office 2000. Will this run on a computer that only has office 2003 in...more >>

I am trying to use Word.Interop to print from ASP.NET. I can get it to open the document but it just hangs on the PrintOut method. I have tried a variety of combinations for the arguments (background = false etc.) to no avail. The code example is as below: ------------------------------------...more >>

I am trying to create a simple DLL and call it from C#, I have not created a dll before and this one gives me a missing method exception when the Message function is called in C#. I can invoke system dll's no problem but I need to create some custom ones so could someone give me a simple exam...more >>

I am having problems with regasm... I am getting the error: RegAsm error: Declaration referenced in a method implementation can not be a final method. Any ideas how I could fix this? It seems to come from the code: public override void Destroy() { } Steven K...more >>

Hello , I have problem with printing using below code to my printer , anyone have any idea why this Code is not working . I have WinXP SP1 Public Class clsRawPrinterHelper Private Structure DOCINFO Public pDocName As String Public pOutputFile As String Public pDatatype As Stri...more >>

Hello, I have a problem with using the Win32 method GetParent. As I read in msdn, if this method is called on a handle which doesn't have a parent (top level and unowned window) then the result is null, the same for when the method fails. They wrote that for distiguishing between failure, and a...more >>

I´m trying to get my first VB.Net application working with DAO. Running the program as stand-alone gives the runtime error: can not find file or assembly name interop.DAO. In the IDE the program works fine. What do I do wrong? Rick ...more >>

How does one go about wrapping a COM event as part of an Interface definition? (without using the import tool on the com object) Anyone have a sample/example of how to do this? I have yet to be able to figure out how. Thanks James Hancock ...more >>

I've been trying to build a wrapper to use with the Authentec SDK for fingerprint scanners. I am a .Net newbie and cannot get the interop dllimport definition to work and return the result I expect. Here is the .h function definition: /////////////////////////////////////////////////////////...more >>

Hi, I'm trying to use the GetKeyName API to get the name of certain keys (in the system language). For example the names of SHIFT and RETURN keys as well as the names of same special characters. I tried to call the API GetKeyName passing the KeyCode of the KeyUP event but got no result ...more >>

how to call unmanaged dll from c# when i need instances of the classes in the dll?...more >>