I have dual boot system with opensuse 11 and windows vista ultimate. How can I see contents of linux in vista?
Similarly How can I see the contents of C: drive where Windows is installed. (I can see and modify contents of other windows partitions D:, E: etc NTFS/FAT32)

Windows will not see your linux partitions, except for using special programs I wouldn't touch. Perhaps use a fat partition to move data.
Linux can certainly see the windows partition, even write to it with the ntfs-3g driver.
Post /etc/fstab and output of "sudo fdisk -l".

To read and write Ext2/3 files, I use the ext2fsd driver in Windows 2000. Works perfectly.
I have never tried with any other version of Windows (nor will I....)

Windows cannot recognize linux partition, if ur using linux OS then get “fuse” package and “fuse-ntfs-3g” from http://dag.wieers.com/rpm/packages/ or get source code of fuse it will be easy to use

Umm...OP wants to read Linux files from Windows.

Well, I misunderstood that as well. Namely the part: "How can I see the contents of C: drive where Windows is installed."

Go to Command prompt then type "fdisk -l" it will list all partition of ur HDD then check the SIZE you give to ur C: drive then mount it, if u have downloaded fuse software then type this command to mount

"mount -t ntfs-3g /dev/partitionname /mnt/"

partition name you can find it from /dev and /mnt is to mount ur ntfs partition.

My mistake---he wants both.
But, he has not been back--so maybe he wants neither......

Earlier I had Windows XP and there was no problem. I could see linux files through explore2fs-1.08beta9 but now this program doesn't work for vista!

In spite of what others here have said, you most certainly CAN access your Linux partitions from Windows. I do it on my WinXP laptop all the time.

Go here, get and install this package, and then your system will recognize and read/write your Linux partition without issue.

This program is asking me to format Linux partitions?
C:\Users\drsethi\Desktop>mountdiag x:
The volume has an Ext2/Ext3 file system, but the Ext2 IFS 1.11 software did not
mount it because there is at least one incompat feature flag set. The Ext2
IFS software does not implement:
* needs_recovery *
Here we have an Ext3 file system which has transactions left in its journal. A
pure Ext2 driver must not access such a volume which is in that state (to
prevent data loss!).
You may solve it by mounting it on Linux (which has a kernel with Ext3
support). Be sure that you cleanly dismount it, before you shutdown Linux.
After that the Ext2 IFS software should be able to access the volume.
The volume has an Ext2/Ext3 file system, but the Ext2 IFS 1.11 software did not
mount it because the file system has an inode size unequal to 128 bytes (inode
size: 256 bytes).
The only way to solve it is to back up the volume's files and format the file
system: give the mkfs.ext3 utility the -I 128 switch. Finally, restore all
backed-up files.
After that, the Ext2 IFS software should be able to access the volume.

Recently I found the cause of problem of not accessing c: drive. It contained bad sectors and was not mounted by Linux. So I formatted c: drive and reinstalled Windows vista and Opensuse 11.1. Now that problem is over