I am installing Solidworks 2015 on a windows 7 computer with command line installation. For both solidworks and explorer I get Error 1722 during installation.

For SW the error is related to "sldshellextserver.exe /REGSERVER" and for Explorer is it related to regsvr32. I have run this installation as Admin on the computer.

When running this install on WMware images we use for testing, the installation is OK, but on our computers we get this error.