where is my file under c:\windows\

Hi,

I'm using vim on Windows 7 and found a very odd problem.
For example, under DOS prompt, I can use command:

vim c:\windows\abc.txt

to edit the file abc.txt. However,

dir c:\windows\abc.txt

show me file not found !!!
and I run

vim c:\windows\abc.txt

again, everything I put in abc.txt is still there !!!???
Does vim use some cache directory ?? What's the problem here ??

Best Regards,
KC

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