Hi all, When connecting to an SSL-enabled web site with Internet Explorer , the client and server must negotiate an SSL session . The server sends its list of trusted root certificates to the client in the form of a non-encrypted record. The server requires that the client have a digital certificate...

Hi all, The other day a customer of mine was trying to sign a binary with SignTool.exe using the following command line on Windows Server 2008 SP2 : Signtool.exe sign /a /f "c:\mycert.pfx" /p "password" /t "http://timestamp.verisign.com/scripts/timstamp.dll" "c:\temp\myFile.exe" And...

Hi all, A customer of mine had to add a list of thousands of applications to the "Run only specified windows applications" GPO on his Windows Server 2008 . And obviously he wanted to automate this task to avoid adding them manually one at a time. So I went the easy way and created the following...

Hi all, A customer of mine was trying to monitor a .log file in a specific folder with .NET's FileSystemWatcher class and a code like the following: static void Main(string[] args) { FileSystemWatcher fsw = new FileSystemWatcher(@"C:\mypath", "myfile.log"); fsw.NotifyFilter = NotifyFilters...

Hi all, The other day a customer of mine was trying to disable the pop up dialog that Windows shows after an application crashes . On Windows XP , they could get rid of it by going to "Control Panel > System Properties > Advanced > Error reporting" , clicking on "Disable error reporting...

Hi all, The other day a customer of mine was experiencing big delays when making this kind of calls to X509Certificate2 constructor : X509Certificate2 cert = new X509Certificate2(byteArray); Sometimes this process was almost instant, sometimes it took up to 2 minutes to create the object!!!...

Hi all, From time to time I like to post about other issues which are not related to crypto stuff, but I consider useful because of the number of request I get on them. And this is one common question I've seen: how do I set sound volume programmatically on Windows? On Windows XP we can manipulate...

Hi all, The other day I worked on an issue related to a SubAuthentication package that one of my customers had developed. One of the things that package was doing was getting the LogonId field of the LogonInformation struct being passed to Msv1_0SubAuthenticationFilter method by the Authentication...

Hi all, welcome back, I've been working on an issue where WM_SIZE events are not properly generated once the nesting hierarchy of windows exceeds a certain depth. This issue only occurs on current x64 Windows : like XP, Server 2008 or the latest Windows 7. For ilustration purposes, let's imagine...

Hi all, I've been working on a Microsoft Remote Procedure Call (RPC) issue recently, where the first call to a specific remote method fails because the call to NdrClientCall2 function in the client stub returns RPC_S_ALREADY_LISTENING ( "The server is already listening" ) error. But subsequent calls...

Hi all, The other day I posted a Javascript sample which shows how to use CertEnroll COM component to create a certificate request and install the response from the CA (Certificate Authority): How to create a certificate request with CertEnroll (JavaScript) . The installation part of that sample...

Hi all, You may be trying to install a hotfix or update silently , but you keep getting a security warning dialog because the file was downloaded from the Internet . The following article explains this situation: 889815 The Open File - Security Warning dialog box is displayed when you try to silently...

Hi all, welcome back, If you remember all the confusion there was regarding CAPICOM support on Vista , now everything seems much clearer on Windows Server 2008. Our documentation team has done its homework, as we can see in CAPICOM Reference : "CAPICOM is available for use in the following...