[Dx4win] Install error on Vista

[KD3TB]

I installed Dx4win version 7.07.02 on my new Vista Machine (32 bit Vista).
I installed Dx4win in the root (C:) directory. I get the following error
when running Dx4win:

 

Driver file: C:\windows\system32\drivers\vichwll.sys not found, trying to
install the driver. When I click okay - Dx4win runs and I can control my
radio, K3, get spots, etc.

 

Any help would be appreciated.

 

Thanks and regards,  Irwin KD3TB