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Find the CD Drive Letter

 Is there a function that I can call to find out the drive letter of the CD-ROM.  I to distribute an application on CD-ROM, but I don't want people to be able to copy the CD-ROM to the hard drive and pass the CD-ROM to someone else.
  Therefore I want to make the program read the data off of the CD-ROM and only the CD requiring them to have the CD in to run the application.
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Jagar
Asked:
Jagar
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1 Solution
 
MikeABBCommented:
You can create a drive list and cycle through the drive letters and use the API call GetDriveType to check if it is a CD-ROM.  Here is the information:


Declare Function GetDriveType& Lib "kernel32" Alias "GetDriveTypeA" (ByVal _
nDrive As String)

Parameter      Type/Description
nDrive      String— A string containing the path to the root directory of the drive.

Return Value
Long—Zero if the drive cannot be identified. One if the specified directory does not exist. One of the constants DRIVE_REMOVABLE, DRIVE_FIXED, DRIVE_REMOTE, DRIVE_CDROM or DRIVE_RAMDISK specifying the drive type on success.
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zsiCommented:
jagar,

In addition to MikeAbb's (any relation to ClifABB?) comments, you might also want to consider either usint the same label on the CD and testing for the existence of that label, or bury a file somewhere in your directory structure and look for it.  This will help to ensure that the proper CD is in the drive.

Don't knock yourself out too much in your attempt to provide copy protection.  You can get a CD burner now for less than $300. :)

If you are really serious about copy protection, I suggest you take a look at Rainbow Technologies (http://www.rainbow.com).  They offer professional anti-piracy solutions.

zsi
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JagarAuthor Commented:
Thanks for the above suggestions, I just trying to make a little protection, so the CD's required will be OK.
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MikeABBCommented:
zsi,
we work in the same group
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JagarAuthor Commented:
Thank you for your help
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