Access is denied error

[buginblue]

Every morning when I run MinimServer it fails to start with this error message:

unexpected exception java.lang.UnsatisfiedLinkError: C:\Users\Mark\AppData\Local\Temp\minim-native-0\ohNet.dll: Access is denied

I uninstall and receive this message:
Some elements could not be removed. These can be removed manually.

I install again and it works until the next day.

I know this message is something to do with 32 bit versions on 64 bit windows 7 but I now have 64 bit Java AND MinimServer installed.

If the error is due to the uninstall leaving something behind - what am I looking for?

Many thanks!