Testing for .net framework installed

[brian728s]

I need help writing a program that determines whether or not the .net framework is installed on a particular computer (the program is running on this computer, of course).

If it detects the presence of the .net framework, it runs one program (the installation wizard). If it doens't detect the .net framework, it starts another program (the installation program for the framework) after displaying a short message telling the user what it is doing.

[Negative0]

Check to see if

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework

is in the registry.

[brian728s]

Thanks!

Unfortunately, I am not skilled enough in a non-visual basic language to do anything with the registry. Could someone help with that?

[Cander]

Its irrelevant to .NET. You need to ask in the C++ forum.

[Pirate]

You don't have to write any program to check that , VS.NET Setup and Deployment Project can do it for you . VS.NET includes a launch condition in both Windows and Web setup projects to check for the .NET Framework's presence on the target OS. If it doesn't find the .NET runtime environment, it displays a dialog box prompting the user to execute the .NET Framework redistributable file you should include with your setup.

[EagleEye]

Why build it when it's already been built? So, OK, pride may make you want to figure it out. But, in case you don't, here is something Microsoft built to do just what you wanted.

Microsoft .NET Framework Setup.exe Bootstrapper Sample

And FYI, I do believe that you can check the registry in VB.NET. I haven't actually tried it but I do know I read about it in one of my books.

Hope this helps.

[squirrelly1]

Erm... A little of topic and probably a little late, but...

Why would it matter in this case if you can look in the registry in .Net? (Yes, you can by the way.)

If you don't have the .Net Framework installed... How can you possibly run the program to see if is installed...

Easiest way to use .Net to check for the framework... Attempt to run the program... if you can't run it, then you don't have it installed. Just a little logic, but probably false knowing my luck.

Squirrelly1

[maged]

aren't u 2.5 years late for this

[squirrelly1]

Like I said...

Erm... A little of topic and probably a little late, but...

I hadn't looked at the dates until after I posted... *Ooops*

But I'm still faced with this deployment **** as far as .Net and MDAC go, so between getting up to make coffee and thumbing through old threads, MY DAY IS PACKED!


Later,

Squirrelly1

[EagleEye]

True ... but that was in the morning b4 work and caffeine. Not to mention that it was over 2 years ago :-)