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Steps to sign a file using Signtool.exe
You may have a situation where you need to sign a file which may be ana. .exe b. .cabc. .catd. .ocxe. .dllf. .stlUsing the CryptoAPI “signtool.exe”, the files can be digitally signed. Digitally signing...
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VB.NET code to find a certificate with its issuer name and display its...
This is a small blog post but I found it handy and useful to document. I created a test certificate with name “shmisra” and kept it in the “Personal” store in the users profile as shown below.I read...
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Passing the flag CERT_CLOSE_STORE_FORCE_FLAG to CertCloseStore may cause your...
CertCloseStore is called with flag CERT_CLOSE_STORE_FORCE_FLAG. This flag forces CertCloseStore to free memory for all contexts associated with the store. This flag can be safely used only when the...
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How to read a certificate from a Smart Card and add it to the system store
The basic high level steps to read a certificate from a Smart Card and add it to the system store are: 1. Establish a Smart Card context using SCardEstablishContext. 2. Display the select card dialog...
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Adding certificates extensions via a Certificate Services Policy Module
Hi everyone,My name is Carlos and my expertise is in Cryptography and Certificates APIs/interfaces. My blog posts will mostly relate to PKI questions or problems that I see customers encountering and...
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How to get a Cryptographic Public Key from a Certificate in a Windows Store...
If you're writing a Windows Store application you'll find that the WinRT runtime is missing the X509Certificate interfaces found in .NET. In many instances, you may want to encrypt or verify a...
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How to create a certificate request on behalf of another user in C# on...
If you're writing an application to create a certificate request, Microsoft provides the certificate enrollment controls. On Windows XP and Windows 2003, XEnroll is the interface that's available for...
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Reducing the time to perform a CRL check on isolated networks
Hi everyone, Writing today to pass along a solution to reduce the time for performing certificate revocation list processing (CRL checking). This topic has been covered in other blogs in length in...
View ArticleVirtual Desktop Switching in Windows 10
Windows 10 introduces a new concept (for Windows anyway) called Virtual Desktops. Currently, the guidance for this on MSDN states: The user can group a collection of windows together to create a...
View ArticleFileSystemWatcher Fencing(Part 2)
This post is a follow up to the FileSystemWatcher Follies post. I received a lot of feedback that it would be useful to highlight what would be appropriate to guide against some of the pitfalls that...
View ArticleWindows Hotfixes for October 2015
Jeff here from the Windows SDK team. Here is the list of October 2015 Hotfixes [Drum roll, please…] KB3030736 “550 The process cannot access the file” error when you try to download a file in Windows...
View ArticleHotfixes for November 2015
Jeff here from the SDK team. Here are the hotfixes for November 2015. KB3040017 XPS driver is slower than GDI driver to print files in Windows KB3063109 Virtual machine crashes and WAL consistency...
View ArticleUsing SHA256 with the SignedXml Class
With the industry moving away from SHA1 including Microsoft (see...
View ArticleSHA-1 Code Signing Deprecation in Windows beginning January 1, 2016
This post is to help the product team spread the word on Windows (version 7 and higher) and Windows Server will no longer trust any code that is signed with a SHA-1 code signing certificate and that...
View ArticleHotfixes for December 2015
Jeff here, from the SDK team with the Holiday Hotfixes. Happy patching. KB2920591 High CPU usage and performance issues occur when access-based enumeration is enabled in Windows 7 Service Pack 1 or...
View ArticleWhy CryptCATAdminCalcHashFromFileHandle fails with a seemingly unexpected...
CryptCATAdminCalcHashFromFileHandle can fail when evaluating a file path to an executable while setting the last error code to 0x800700c1. It’s an HRESULT instead of just an error code, but the...
View ArticleHotfix for January 2016
Jeff here from the SDK team. This month there is only 1 public hotfix because of the holidays. 3047331 “0x00000050″ Stop error on a failover cluster that is running Windows Server 2012 R2 or...
View ArticleHotfix List for February 2016
Hi guys, Jeff here from the Windows SDK team. Here are the Windows hotfixes for February 2016. KB3007507 “HTTP Error 500.19″ error when you browse an IIS 8.5 website in Windows KB3090343 Cluster...
View ArticleWhy does SqlDataReader behave differently with Set-PSDebug enabled?
We recently had someone ask why their PowerShell script stopped working correctly when they enabled tracing with the command Set-PSDebug -Trace 2. The part of the code in question that didn’t work...
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Visual Studio Team Services and Personal Microsoft Accounts
Visual Studio Team Services and Personal Microsoft Accounts 10/5/2016 Update – Due to the unexpectedly high impact to many corporate VSTS accounts backed by Personal Microsoft accounts, VSTS accounts...
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