how can i fix the problem plz help me iam using windows xp professional version 2002 service pack2

And I cannot understand why nobody at Microsoft thought about adding some bootstrap code to .Net applications to check for the framework and display a useful error message if it must be installer...

Because "useful error messages" get misquoted or misunderstood all the time. By having a weird alphanumeric (or hex as in this case) error appear, the support knows that you will be paying extra attention when reading them the error message.
Plus, the error codes are usually specific enough ;)

Yes, support understands them. But a useful error message with an hyperlink would be so much nicer for tech people who have to develop application AND do the support. People always say "It doesn't work" or "It doesn't start" and cannot even be bothered to write down the error message.

At least, that's my experience of it...

Is this a spam message? Are you running a pirated version of XP?

That string alone suggest me that you've not updated the OS at all after installing it. I can be caused by loads of things, for example, missing the latest version of Windows Installer for your OS, missing Visual C++ dependencies, and similar stuff.

What are you trying to do, that makes this error message appear?

@ the above posts, this doesn't have anything to do with .NET. Looks like missing VC++ dependencies than something related to .NET. IIRC, .NET applications do tell exactly which .NET version needs to be installed for the particular app to run, if launched without that .NET version installed.

Not 100% sure whether this is framework-wide or specific to the few apps that I've tried (on XP a long time ago, that's why I do not remember correctly), but I have seen a nicely written message about this.

Oh, and 100% sure about this, if an application needs .NET 3.5 or earlier version on Windows 8, a window pops up that enables you to install the required version with a click or two, along with security and performance updates and all that.