Did you try running Soldat in a compatibility mode? Here are the instructions on how to set it.
1). Find the Soldat program or the icon.
2). Right click it and select properties.
3). In the above tabs, select compatibility.
4). Find "Windows XP Service Pack 2" and select it.
5). Select Appy and OK.
If you followed these steps properly, then Soldat should work correctly.