i downloaded borland turbo C explorer in my xp
but now i have shifted to vista the problem is that when ever i try
to install it shows a message box asking for .NET v1.1 i downloaded it also but when i install .Net v1.1 it gives the following error
regsvcs.exe
application has created an exception which could not be
handled

you can see it from the following link..
http://www.pikipimp.com/pp/pimped_photo/s/image/42/400/483/snap.png?ts=1237448980204

i have vista ultimate it har all .net frameforks installed but v1.1 is not & is not installing didd u see the snap shot

Are you sure it is a .NET problem. You are not supposed to have previous versions of.NET if you have up to date versions. What version were you last using with XP?

on xp i had installed .net v1.1, 2.2, 3.0