First of all thanks a lot as you replied and also for your fast response

now:

Quote Originally Posted by Niya View Post
Well first off, 4.0 is not the latest version. 4.5.2 is the latest version.
yes sir, i knew that, but as far as i know 4.0> is not supported in windows xp. You may say windows xp is not supported by ms (Microsoft) either but still many people use xp (sp3 or so).

Quote Originally Posted by Niya View Post
4.0 and higher adds a few niceties but nothing really groundbreaking so you can get on fine without it for now.
sir, as i told i just get starting. But already i noticed few lacks on it for example 3.5 does not support LinkLabel tab stop property only 4 and 4+. (may be this one not a big issue but still)

so, i thought i could go with 4.0 as it support xp =>

so, would you please help me about my main issue ..

once again thanks a lot for your reply...

best regards
take care
may Allah bless you
have a nice day
bye bye