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#1
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Hi
We are using the USBDML product and trying to enable autorun for USB devices only (i.e. disable for CD-ROM drives) This is because some of our USB drives use the DTE_Privacy_Launcher, which is autorun from one of the USB volumes to allow access to the encrypted data on the other volume. We are struggling to get Windows XP to differentiate between CD-ROM and removable drives The registry setting we seem to be having issues with is: HKCU\Software\Microsoft\Windows\CurrentVersion\Pol icies\Explorer \NoDriveTypeAutoRun We are struggling to find the 'component' bitmap values for Windows XP... There is a great article on the Windows 2000 value settings http://www.microsoft.com/technet/pro...2.mspx?pf=true but these seem to be different for Windows XP... All we can find is "Look at the value of the NoDriveTypeAutoRun entry. A value of 0xb5 turns off the AutoRun feature for CD-ROMs. To turn on the AutoRun feature, right-click NoDriveTypeAutoRun, click Modify, type 91 in the Value data box, select Hexadecimal, and then click OK." We have googled, search resource kits, etc. but can't seem to find the bitmap values for specific components under XP.. Does anyone happen to know these values? Regards and thanks David |
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#2
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It appears that the 'Types' piece can't differentiate between our USB
drives and the CD-ROM... Any setting for NoDriveTypeAutoRun with the 0x20 value in seems to disable autorun on the required USB devices. We therefore decided to use the NoDriveAutoRun policy setting, which we can target to specific drives for certain machine types (e.g. our desktops have CD-ROM on D:, whereas laptops have dual partitions, so CD-ROM is E ![]() Group Policy template to enable access to the required policy setting: ; HKLMNoDriveAutoRun.adm Policy template ; David Brightman, May 2007 CLASS MACHINE CATEGORY "Disable AutoRun for specified drive letters" POLICY NoDriveAutoRun EXPLAIN !!NoDriveAutoRunHelp KEYNAME SOFTWARE\Microsoft\Windows\CurrentVersion\policies \Explorer PART !!NoDriveAutoRunDropdown DROPDOWNLIST NOSORT REQUIRED VALUENAME "NoDriveAutoRun" ITEMLIST NAME !!DOnly VALUE NUMERIC 8 NAME !!Eonly VALUE NUMERIC 16 NAME !!DandE VALUE NUMERIC 24 END ITEMLIST END PART END POLICY END CATEGORY [strings] NoDriveAutoRunDropdown="Autoplay settings:" DOnly="Restrict D: drive only" EOnly="Restrict E: drive only" DandE="Restrict both D: and E: drives" NoDriveAutoRunHelp="NoDriveAutorun is stored as a REG_DWORD in which each bit set disable autorun for the correspondig drive.\n\nThis template only provides values of \nD: (0x00000008), \nE: (0x00000010) and \nBoth D: and E: (0x00000018)" Hope this helps someone in the same boat! All the best David |
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