Attempted to read or write protected memory in Office.Interop.Excel
Hi all,I have a problem creating an Excel file from C# Code with Microsoft.office.interop.excel.dll.The Code where the Exception occurs is:workbook.SaveAs(filename, missing, missing, missing, missing,...
View ArticleCan we deploy IWSHRUNTIMELIBRARY with our project?
I have used the IWSHRUNTIME.dll library in my project. My question is how can we deploy the IWSHRUNTIME.dll library with our project and also is it safe to use this library?
View ArticleOdd construct in IL (private & virtual method)?
I was looking at some IL recently, and noticed a number of odd signatures. There is a "My" namespace, which suggests that the source language might have been VB.NET. However, I have worked...
View ArticleIncreasing the HEAP size in .NET Framework
Is there a configuration parameter to increase the heap size, especially for 64-bit OS? Or how do I go beyond the default heap size?Thanks,SPSP
View ArticleWMIProvider (LocalSystemHost:CLR) not running under System context
Hi,I am trying to develop a managed WMI provider in .NET 4.0 that runs under the Local System account on Windows XP/7 machines. I start my class definition with the following code: [assembly:...
View ArticleGlobal data getting reset when running under IIS?
We have a scenario using IIS with an ASP.NET web service written in VB.NET. When a call to the web service is made, the web service calls a native dll (written in C, compiled using VS2010) using...
View ArticleAssembly Version redirect doesn't work with a configSource in
Hi, We have built a framework for our Company. It includes about 40 assemblies (about 7 services).We have just delivered a new version (v1.2) of this framework. Each team using our framework must...
View ArticleFramework 4.5 64 bit speed issue
Hi All I have been investigating a strange problem for a couple of days, and it has come to this: I have a simple WinForms applications with a lot of controls, and a lot of them nested in multi layer...
View ArticleIO.Directory.Delete - Read-only "Access Denied"
I'm in the middle of a major project converting a VB6 application to .NET and have a requirement to delete a folder and its contents, in this case a complete user profile folder from C:\Documents and...
View ArticleCSC Compile timeouts
I have recently moved my solutions from VS2010 to VS2013. When I test otherwise unmodified code on a Windows 2003 Server I start to get errors of this kind:'Error occurred while compiling the script:...
View ArticleC++ DLL to GET data from a C# dll
I have a C++ DLL that has data types of char *, std::string and C++ structures that need to bee assigned by data retrieved via a Web Service C# DLL. First can anyone point me to a simple but yet...
View ArticlePerformance counters: sum of all managed heaps is greather then private bytes
I have the following issue with my process. Why can private bytes value be less than managed heaps? Feel free to consider scenarios with any complexity of inter-process interaction. This reproduces for...
View ArticleObject^* should I pin_ptr it or not ?
Hi,I would to know if this code is safe or if I need to pin_ptr my Object^* parameter before using it.ref struct A { System::String ^s; }; void test2(A ^* po) { (*po)->s = "test2"; // is it safe ? }...
View Articleis it safe to cast interior_ptr and interior_ptr to interior_ptr ?
Is that code safe ? (GetInterior_ptr)using namespace System;ref struct A { String ^s; Object ^o;};interior_ptr<Int32> GetInterior_ptr(A ^a) { interior_ptr<String^> ip = &a->s; return...
View ArticleConvert in c# a function with structure containing a pointer
How can I convert in C# the C function DRV_DioReadBitcontaining the structure PT_DioReadBit:FEXPORT LRESULT FTYPE DRV_DioReadBit(LONG_PTR DriverHandle, LPT_DioReadBit lpDioReadBit);...
View ArticleFIPS validated cryptographic algorithms
I have enabled the FIPS algorithm policy on our windows server2008 machine. Now, any page that has a viewstate is abending with the following error: This implementation is not part of the Windows...
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X509Certificate2.PrivateKey fails even if HasPrivateKey == true
Hi,I am trying to exercise the methods and properties of X509Certificate2 class as I wish to convert an application from .Net Framework 1.1 with its many P/Invoke and CAPICOM calls to a pure .Net app...
View ArticleSetupDiGetDeviceRegistryProperty
I have a C# application using P/Invoke to call several SetupApi.dll methods. I'm not getting an error when I call SetupDiGetDeviceRegistryProperty(), but I'm not getting the desired result either.At...
View Articlewhich is better?
String o = null; if (o != null) { } if (o is Object) { } Which is better o != null or o is Object
View ArticleCOM interop assemblies and PrimaryInteropAssemblyCodeBase
We have a pretty big issue with registering 32-bit and 64-bit primary interop assemblies and maintaining IntelliSense support. We ship both 32-bit and 64-bit COM in-proc servers and register the...
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