Is it safe to download and install this on Windows 98 S.E?

I am being asked to install this as I am trying to install the program called uMark-Lite from here http://www.photo-freeware.net/umark-lite.php and if I say yes to the request for the Net Framework version this page appears http://msdn.microsoft.com/en-gb/netframework/default.aspx

I just wondered if any users of Windows 98 S.E have ever required to download this for any reason on their system prior to installing such a program similar to uMark-Lite.

It looks like the program won't install unless I download this Framework version, and I am slightly concerned that it may cause problems on my system.

This could give you an idea.

Thank you.

If it helps, here are all .NET editions + patches:

http://www.mdgx.com/add.htm#NFR

HTH

Thank you.