DTLite Won't Create Virtual Drive

[Terramex]

In addition to the devfilter.exe tool

...in my registry the CDROM entry has not filters but it does the DISKDRIVE entry. Should I edit it?

No ! Only filters in the optical drives stack may render DT lite unusable.

Please try to temporarily disable the avast! Real-Time shields.
If that doesen't help: Open the System Configuration Utility (msconfig.exe).
Go to 'Services' and check 'Hide all Microsoft services'.
Choose to 'Disable all' and restart your system.
Any improvement ? (you can revert the changes made at that same place).

Or -for testing purposes- i would uninstall avast.
You can save your current avast settings under Settings -> General (or in older versions: Maintenance)

[SUPPORT1]

Hello,
You may use this software to find what driver is system or not

http://www.bustrace.com/downloads/devfilter.exe

[Guasimara]

Hi. I have the same problem with DTL 4.48. I have checked the article from Microsoft and in my registry the CDROM entry has not filters but it does the DISKDRIVE entry. Should I edit it? Now it has Lowerfilters=EhStorClass and Upperfilter=PartMgr but I'm not sure if I should delete them as the article talks only about DVD/CDROM.

btw my optical drivers works fine and I've got Avast antivirus. The PC is new with windows 8.1.

thank you

[Terramex]

Please manually delete upper/lower filter as described here (Resolution):
The CD drive or the DVD drive does not work as expected on a computer that is running Windows Vista (also works on Windows XP/7/8/8.1).

btw. is your physical optical drive working ok ?
Which security software(s) are you using ?

[catthepatch]

Have removed asd reinstalled DT Lite several times. Using Win XP SP3, Dell Dimension 4600. Worked well in the past but, now won't create virtual drive. What am I doing wrong? Help!