FAQ (Frequently Asked Questions)
What's new in version 2.61?
Fix video playback crash with processors that do not support the cmov instruction like K6-III or Via C3
Fix video playback crash with AMD K6-2 and K6-III processors
I can't get the sound support to work at all. The system info (F2 in the menu) says it hasn't detected a sound card.
Most of today's systems have an AC97 sound chip that will require a driver
under DOS. QuickView now supports
external sound drivers
for an increasing number of sound chips.
Some old AC97 sound chips come with DOS drivers. Make sure "Legacy Audio Device"
is enabled in the BIOS to make it Sound Blaster compatible. Have a look at the Sound cards under MS-DOS
page (in German). It explains what drivers are necessary and offers them for download for some sound chips.
If you have an ISA sound card then check the sound card detection program. It will look for Sound Blaster compatible sound chips and drivers respectively.
QuickView supports hardware scaling and color space conversion with various
graphics chips to increase quality and performance. Which ones exactly?
For a complete list look
What are the minimum requirements for DivX playback?
This question cannot be answered generally. A Pentium II-300 might
already give satisfying results if the other hardware components
(especially graphics card) are fast enough. If you can live with
frame drops and/or no fullscreen, grayscale, lower sound quality
you can already try the DivX video playback on a Pentium 166.
I can't hear sound with some DivX videos.
This might be because the sound is encoded with an audio codec that is
currently unsupported. Check what audio codec the video uses by using File
Info (F3). If you either get the message "unsupported" or "unknown" then
this sound codec is currently unsupported. Also note that incompletely downloaded
videos (QuickView Pro is used to preview the videos) are played without sound
in some cases. By the way, Windows Media Player refuses to play these videos at all.
What about the support of other sound codecs like AC3 or Voxware MetaSound?
AC3 cannot be supported because of copyright and patent reasons.
Voxware MetaSound can currently not be supported because its algorithm is unkown.
I get clicking noises after a few minutes of video playback with my ESS sound card.
Some ESS cards seem to have problems with 16 bit sound. Use the -W4 parameter in that case to enable Sound Blaster Pro compatibility with 8 bits.
QuickView Pro for DOS shows long file names if it is run under Windows. Is it possible
to see long file names also under plain DOS?
Yes, you have to install a driver that emulates long file names under DOS.
A good one is
DOSLFN by Henrik Haftmann.
I have downloaded the QuickView Pro zip file but I can't install the program under Windows.
QuickView Pro for DOS is a DOS program. It does work under Windows 95/98/ME
though. You don't have to install it, just uncompress it some directory using
Winzip for example.
Does QuickView Pro for DOS run under Windows XP, NT, Windows 7 and
The DOS support of these Windows versions is limited. You can use software
like VirtualBox or DOSBox
that provide a better DOS support.
I have an ATI RAGE PRO graphics card. Images look distorted in any higher
resolution than 320x200. Videos are only affected if hardware acceleration
is not used.
This problem is caused by a buggy ATI driver which only has effect on
VESA modes. Its Windows installer was named "w98rpro4122632.exe", the
version number (can be checked under Windows in your Display Settings
at Special) is 4.12.2632. Either install a different driver or use
hardware acceleration only.
There is a QuickView Pro for Linux
version. Does this mean that the development of the DOS version will be stopped?
No, not at all. Both, the DOS and the Linux version share the same code and
will be developed together. The code is portable so that it could work
under all 32 bit x86 operating systems (except for the OS and hardware specific
code of course). The development of the Linux version however is currently
Will you release a DVD player for DOS?
No, the license fees for DVD are prohibitly high and without this license it would be illegal.
Why is QuickView so fast and so small?
All major decoding and screen handling parts are pure Assembler.
I need video playback for my DOS presentation software. MP4, AVI, MOV
and MPEG are the most common video formats on PCs. Is the MP4, AVI, MOV or MPEG
playback part licensable?
All QuickView parts including MP4, AVI, MOV, MPEG and FLI playback are licensable, either
as a stand alone EXE file or as a library (for Watcom C/C++, Turbo C/C++, Borland Pascal
and TMT Pascal). The price depends on the number of copies you need. Please
contact the author with a detailed description of your needs.
Is the source code of QuickView available?
Usually not. There are libraries ready that I can modify for your needs.
Do you do custom programming?
Yes. Please contact the author with a detailed description of your needs.
I don't have enough money to register.
Supporting QuickView Pro by paying a small fee is the only way to keep the
shareware project alive. If you can't afford the usual fee then send what you
can or what it's worth for you. You can pay any sum through PayPal, send
any sum as cash or remit any sum. There is no reason to send nothing instead.
Do not beg for free registrations. Detailed support can only be given to registered users.
Register QuickView Pro now.
Last updated on 23 December 2017 firstname.lastname@example.org