com

I would like to get data from .xls files without manually opening Excel. One possibility is to use COM automation. There are the com-1.2.3 and hdirect packages, but I can't find any examples of how to use these packages with Excel. Does anyone have a solution for this? With something like this, if your needs are relatively simple, I've found that it's more straightforward to find/write a command line executable that just pulls out a csv from the xls file. Then you invoke that executable from haskell, and proceed with its output from there. In Ruby, I use rjb (ruby java bridge) and use a

I'm unable to add reference to 'Microsoft Windows Installer Object Library' with VS2012. Any ideas, what could cause this issue? When I try to create reference to the COM component, I get this error message "a reference to 'Microsoft Windows Installer Object Library' could not be added". The VS project is basic class library (c# x86). In Visual Studio go to References > Add Reference... > COM > Browse... > %WINDIR%\system32\msi.dll . Worked for me on VS2012. Check ur Regedit , Please check these Values HKEY_CLASSES_ROOT\TypeLib\{000C1092-0000-0000-C000-000000000046}\1.0 If Visual Studio 2010

I had created a COM+ domain partition then mapped it to a Windows 2008 server machine and imported a COM+ application into it. I tried using the following C# code to activate an object from that specific partition on the server remotely: //partition guid Guid guidMyPartition = new Guid("41E90F3E-56C1-4633-81C3-6E8BAC8BDD70"); //parition moniker string uri= "partition:{" + guidMyPartition + "}/new:MyObject"; Type t = Type.GetTypeFromProgID("MyObject", "MyServer"); MyObject obj = (MyObject)Activator.GetObject(t, uri); But I get this exception: Cannot create channel sink to connect to URL

This question already has answers here : How to check if a DLL file is registered? (7 answers) Closed 4 years ago . How do I check if a COM component (EXE/DLL file) is registered or not using .NET? Just make a lookup in the registry. HKEY_CLASSES_ROOT\yourcom.component. DB Tech It depends. Your component will be registered into the Windows Registry so you need to figure out which hive you want to look in. If your component is installed with regasm, chances are HKCU will be used, since it will be run from a user's command line. If, however, you use an MSI, the MSI may not use regasm and may

Part of my everyday work is maintaining and extending legacy VB6 applications. A common engine is written in C/C++ and VB6 uses these functions in order to improve performance. When it comes to asynchronous programming, a C interface is not enough and we rely on COM controls to fire events to VB6. My problem is that when I register the control in VB6, VB loads this control in memory and does not unload it until I quit the VB6 IDE. As the control is loaded the whole time, I am unable to recompile it in VC6, because the DLL file is locked. A solution I found is not to enable the control in VB

I have a native dll (which is an activex control) that I need use with my .NET application without having to register the dll in the registry. I have read several in depth posts about registration free activation, some of the better ones are A lengthy one from Steve White and Leslie Muller This one from samuel jack And another from Mike Makarov and from what I can see it is possible. However several hours and hundreds of tests later I just cant get it to work. I've done a bit of PInvoking and even less with ActiveX controls in .NET in my career, so would appreciate any input from anyone whom