Archive for the ‘Technology’ Category

Problems with applications that run at startup can cause logon delays or even prevent you from completing Windows startup in normal mode. One way you can simplify your configuration is to disable startup applications   By holding down the Shift key during the logon process, you can prevent the operating system from running startup programs or shortcuts in the following folders: ... Full story

If you hold down Shift key while right clicking on any file in Windows Vista or Windows 7 explorer, you can see few more options in the context menu.You can easily add one more option to the file context menu called “Take Ownership” option which will be very useful to take ownership of any file.As many of you know, we ... Full story

Similar to former operating system Windows Vista, Microsoft’s new OS Windows 7 also has a built-in administrator account which is created when it is installed and it is disabled by default.Whenever you want to perform tasks under the administrator account with no UAC (user account control) in Windows 7, you need to enable the administrator account.You can go through this grand Administrator account to solve ... Full story

One significant addition to Windows Vista’s TCP/IP stack is CTCP or Compound TCP.CTCP(Compound TCP) is a technology that came out of the Microsoft Research group as a way to deal with connections that have a large bandwidth-delay product. This is because traditional TCP is inherently a conservative and well behaved system based on reliability and sharing as the most important properties.A good example of large ... Full story

About Windows DNS Cache: Windows uses a cache called DNS cache to store recently visited websites ie,Windows operating system puts the DNS information into a local DNS cache on your PC when you visit a site. You can see what your computer stores in this cache by going to Windows Vista Start > Run and typing cmd (the command prompt). Now type ipconfig/displaydns. ... Full story

Fact: Windows Operating System uses 20% of your internet connection bandwidth by default! Reason: Windows reserves 20% of your available bandwidth for several reasons related to QoS or Quality of Services like Internet telephone systems, video, and also Windows Updates. Resolution: But there is a simple trick to utilize your full internet bandwidth ... Full story

This post explores the performance issues that arise when using PLINQ to parallelize queries, and illustrates how the Concurrency Visualizer in Visual Studio 2010 can be a valuable tool in identifying performance bottlenecks and making efficient and profitable parallelization choices. The subject of this entry is a toy application that scans a set of files for a user-specified pattern and performs some processing every ... Full story

The Message Passing Interface (MPI) is a popular API for developing message-passing based parallel applications on clusters.  Microsoft has a Windows HPC Server product that includes an implementation of MPI, among other things (visit http://www.microsoft.com/hpc).  In this post, I’d like to demonstrate how the Visual Studio Concurrency Visualizer can be used to efficiently identify MPI communication overheads on the Windows HPC Server platform.  Before ... Full story

The aim of this post is to help developers writing applications in which operations may need to be performed and then later undone due to a subsequent failure. It shows a pattern for how to maintain such a consistent application state by utilizing functionality from the Task Parallel Library (TPL) in the .NET Framework 4. For the purposes of this blog post, a ... Full story

Google is hoping to make Web pages download up to twice as quickly using SPDY, a new application-layer protocol it's experimenting with, the company said in a blog post.   It wants to improve on the performance of using HTTP (Hypertext Transfer Protocol) by minimizing latency. For the protocol to work, the browser and the web server have to be upgraded, but ... Full story