[NTG-context] Problem with „kpathsearch510.dll“

Hello, I'm using contextminimals with win7 64bit. Since a few days i get the following two messages when I try to update or to do a new install of contextminimals. The message (error report) for two times is: pdftex.exe – Einsprungpunkt nicht gefunden Der Prozedureinsprungpunkt „sfseek64“ wurde in der DLL „kpathsearch510.dll“ nicht gefunden. Sorry, I'm not able to translate this. Context (mkiv) is working ; texexec (mkii) is broken. What can I do? Thanks, Helmut helmut.schwertner(at)gmx.de