Perhaps this article will help Watch VHS on PC
I have not tried this I converted my old tapes to DVD using a connection from VHS player to a stand alone DVD recorder.
It is much easier to play audio cassettes on your pc. Simply plug your tape player into your sound card and turn the tape player on. To put anything on your pc it must be converted into digital format. To simply play it you will need a program to do it. For video a tv tuner or capture card may be required.
For audio recordings Goldwave is an excellent reasonably priced program. You get free lifetime updates. It has enough filters to do amazing things. Remember the pops and ticks heard on Lps? How about the hiss and hum on tapes? I was able to remove all of that using Goldwave. I had a 1973 tape of an album I liked that was never released on cd. Managed to record it on the pc and Goldwave removed all the noise. The resulting cd is surprisingly clean.