Folks,

Never mind. I went through and changed the permissions on the f: drive and now 
it is working again. Even though my userId in cygwin is administrator Windows 
does not seem to recognise me as such. CreateFile() is now able to create a 
valid handle once more. I also dont seem to have any side effects of changing 
the mode on the file.

Kirk

Kirk Russell
IT BJU
864 242 5100 x3884

>>> "Kirk Russell" <[EMAIL PROTECTED]> 2/20/2007 1:18:03 PM >>>
Hi,

I am trying to port a program from Windows XP to Vista and am running into 
several issues. 

1) When I issue an fopen of a file with "rb" or "wb" modes they fails. I have 
since switched to just a "r" and "w" and it now works. This was not an issue on 
XP.

2) When I issue a CreateFile() function call against f: which is a USB drive an 
invalid handle error is returned. I would appreciate any help solving this. 
Some of the things that I have done are.

             a) Ran as the admin user
             b) created a manifest file to run the process as admin
             c) Ran CreateFile() on a directory (f://test) and not the root for 
the USB drive (f:)
             d) Turned off UAC

Kirk



Kirk Russell
IT BJU
864 242 5100 x3884


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