The P/N will let you find the camera software for the 860-000109 here:
http://support.logitech.com/en_us/article/3428?product=a0qi00000069v1bAAA . This part number is for the QuickCam Pro 9000 or the WebCam Pro 9000. Based on the model number, V-UBM46, you have the QuickCam Pro 9000. Scroll down to find the correct software for the operating system on your computer. The QuickCam Pro 9000 can be used with the LWS (Logitech Webcam Software) versions 1.1, 2.31, 2.51 and 2.80. LWS 2.51 and LWS 2.80 do not support the Video Effects. LWS 2.80 works with Windows 8 and 10 and the direct link to the program installer is
http://www.logitech.com/pub/video/lws/lws280.exe . Links to all versions of LWS are at the bottom of the second chart. Additional information and FAQs are available here: http://support.logitech.com/en_us/product/quickcam-pro-9000 .
I hope this helps.
Cindy Wells