Please help me.

I have a laptop with C drive containing Vista, and D drive containing other windows OS(XP). The other windows os is older version than that of vista and then vista did not boot. finally i managed to get help from Microsoft website and could boot both vista and the other OS.

I have another unpartition space about 8GB on hard disk which i plan to install Linux.

After I install red hat el5 on that partition will i be able to boot into the vista and other windows??please help me

Thanks
Pratik

Ello : ) pratik,

After you install your Redhat in your 8GB of unpartitioned space,yes you will be able to boot from Vista and windows also ..

If you follow the normal installation your linux would be the default loader and you will have to press h for you to show the other boots.
I did a normal installation on my PC n am pressing h everytime i start my computer if i want to go to windows.

but there customized options on, what is the default loader and how much time it has to wait n stuff, something to do with GRUB i suppose. i ll also like a answer for your question.

You can boot into windows from the linux boot loader. There should not be any problems if you install Grub in MBR of hard drive.
By default it should boot into linux and you should be able to change the default boot option while installing linux. And you can tweak it any time you want.
Other question is what is the reason that you are going for RHEL5? Do you have a paid subscription from red hat? If not then it will be a good idea to install CentOS which is nothing but RHEL except the logos removed. This way you can keep your system up-to-date with critical updates that you wont get without subscription with RH.
Else you can go for any good desktop distribution like Ubuntu or openSuse etc.

Have you considered using Virtual Box http://www.virtualbox.org/ from Sun or VMware?

Hey people,
Thanks a lot for your replies. I did the installation and it went through fine. Im doing the Red hat course thats why I needed red hat in the system. Earlier the red hat DVD used to come along with the books. But i got the new books and there was no red hat dvd inside :-(. Hence had to borrow it from my friend who registered for the course earlier and also had the dvd. If I am able to do all that red hat linux commands in cent os ill prefer it. thanks. And thanks for letting me know about virtual box. i feel its better than virtual PC. If im not mistaken virtual box is like virtual PC from Microsoft?

Thanks
Pratik

As I said before CentOS is nothing but RH with logos removed and no enterprise support. If you are taking RH course and need to practice you can do that on CentOS as well. There is no difference.
VirtualBox is a virtualization software that will allow you to run os inside another running os. There are many different softwares for that. But if you are taking a course and want it for practice then it is better to install the system rather than using it in a virtualization.