java.lang.UnsatisfiedLinkError:

Hi,
need a bit of advice here.

Running the 32bit V4.6.4.4.6.4 free version of SoapUI
Nothing has being changed in the SoapUI.bat startup file

When running as a workstation "Administrator" I dont have any issue.
However, when running as a workstation "user" I receive the following error on startup.

Giving the users "Administrator" rights is NOT an option

Not being a developer I'm at a loss of where to start looking. Any help appreciated.

2014-05-11 13:31:55,032 ERROR [errorlog] java.lang.UnsatisfiedLinkError: com.btr.proxy.search.desktop.win.Win32ProxyUtils.winHttpGetIEProxyConfigForCurrentUser()Lcom/btr/proxy/search/desktop/win/Win32IESettings;
java.lang.UnsatisfiedLinkError: com.btr.proxy.search.desktop.win.Win32ProxyUtils.winHttpGetIEProxyConfigForCurrentUser()Lcom/btr/proxy/search/desktop/win/Win32IESettings;
at com.btr.proxy.search.desktop.win.Win32ProxyUtils.winHttpGetIEProxyConfigForCurrentUser(Native Method)
at com.btr.proxy.search.browser.ie.IEProxySearchStrategy.readSettings(IEProxySearchStrategy.java:57)
at com.btr.proxy.search.browser.ie.IEProxySearchStrategy.getProxySelector(IEProxySearchStrategy.java:42)
at com.btr.proxy.search.ProxySearch.getProxySelector(ProxySearch.java:193)
at com.eviware.soapui.impl.wsdl.support.http.CompositeHttpRoutePlanner.getProxySelector(CompositeHttpRoutePlanner.java:72)
at com.eviware.soapui.impl.wsdl.support.http.CompositeHttpRoutePlanner.determineRoute(CompositeHttpRoutePlanner.java:59)
at org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:709)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:356)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at com.eviware.soapui.impl.wsdl.support.http.HttpClientSupport$Helper.execute(HttpClientSupport.java:238)
at com.eviware.soapui.impl.wsdl.support.http.HttpClientSupport.execute(HttpClientSupport.java:348)
at com.eviware.soapui.impl.wsdl.submit.transports.http.HttpClientRequestTransport.submitRequest(HttpClientRequestTransport.java:318)
at com.eviware.soapui.impl.wsdl.submit.transports.http.HttpClientRequestTransport.sendRequest(HttpClientRequestTransport.java:232)
at com.eviware.soapui.impl.wsdl.WsdlSubmit.run(WsdlSubmit.java:123)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)