I have the problem with WIS standalone installation
Version: DAS 012012, MB Star C4
http://www.mbstarshop.com/wholesale/mb-star-compact-c4-fit-all-computer.html
LanID: 080002AF5490
1) Keys; checked and used 2 different keys, they are all - saved successfully
2) WIS is 012012
3) Modifyed d2ksetup.ini
4) Running sdswitch.exe
trying to install on "clean" system, Xentry DAS is working, but WIS (surprisingly) I cannot install.

Solution found!
Problem only in permission on folder e:\wis
You need to do:
1) Right click on folder WIS disc E:
2) Select "Sharing and Security" menu
3) Click on Security tab
4) Select "Users" in "Group or user names:" list
5) in list "Permission for Users" check "Full control"
6) Press OK
and you done！

WIS installation reference:
How to install WIS for MB SD Connect C4

Easiest way to avoid installation problem:
To buy Mercedes software HDD or SSD from from http://www.mbstarshop.com/wholesale/mb-star-software/
- all software pre-installed on the disk before delivery