Apparently, Windows XP is designed to specifically allow only a single USB WebCam from each vendor - you can have as many cameras as you like ... as long as there is only one per vendor. (Of course, I discovered this AFTER purchasing the cameras.)
After fiddling with it for a few hours, I discovered that each time you plug the camera into a different USB port, you have to reinstall the drivers. However, this installation overwrites the existing drivers. This means that if one camera is plugged in, you can not install a second. The fix was to install the cameras on each port while the other was removed, then the system would support 2 cameras from the same vendor at the same time.
iMicro 1280x960 WebCam
I noticed the ones on the first camera and just figured they were a simple flaw. But when I bought a second camera with 5 bad pixels - well, this just a very poor product - thumbs down on a dog.
Two undocumented features - Neither of these is documented in the manual or on the packaging.
The packaging indicates that the following software is included ... it is NOT ... this is fraud
Since only the removable (2 screws) base mount and the packaging indicate the brand, I assume that these are the pixel rejects of a high quality product - wish I knew which one.
It is especially irritating that C:\WINDOWS\vsnp2std.exe continuously tries to open a registry key that does not exist.
HKLM\3 Stepping 4, GenuineIntelThe closest matches are
HKLM\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Identifier = x86 Family 15 Model 3 Stepping 4 HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment PROCESSOR_IDENTIFIER = x86 Family 15 Model 3 Stepping 4, GenuineIntelThus proving that this software is written by incompetent fools (or that there is another registry mystery that I don't understand).
According to liutilities.com, vsnp2std.exe is a Camera Monitor from Sonix belonging to PC Camera Monitor Application
C:\WINDOWS\vsnp2std(2).exe 12/5/06 C:\WINDOWS\vsnp2std(3).exe 12/5/06 C:\WINDOWS\vsnp2std.exe 12/5/06 C:\WINDOWS\tsnp2std.exe 2/13/07These were installed via
C:\Program Files\Common Files\snp2stdEvery time my system boots, these are executed via
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run snp2std = C:\WINDOWS\vsnp2std.exe tsnp2std = C:\WINDOWS\tsnp2std.exe