even in German it's hard to me to understand what your problem is. At least you want to load any DLL created with VS2005 from network. You have not told us what AutoCAD tells you when you try to _NETLOAD this dll (I guess you get some information about the source of problem within the command-line).
You also didn't tell us, what AutoCAD version you use, what os you use, ...
At least loading a dotNET-DLL from network is avoided by default because the framework sees a network-connection as non-trusted source. With framework 4 (and 4.5 I guess) you can define in the acad,exe.config-file that network resources have to be seen as trusted. With DLL's based on frameworks <= 3.5 you have to assign the permissions for network-connections so framework allows loading and executing (a tool for that is CASPOL, search for it in www, you'll find a lot about it).
I hope you understand this english written answer, but as this forum is international (and I think also German is not your mother language). If you have problems understanding it let us know what's you mother language and what languages you understand better than this english one.
Ich hoffe Du verstehst die Antwort in englisch, aber das Forum ist international gehalten und daher in englisch geführt (und ich glaube auch, dass Deutsch nicht Deine Muttersprache ist). Wenn Du mit dem Verstehen der Antwort ein Problem hast, dann lass uns wissen, in welchen Sprachen es für Dich besser möglich wäre.
Schöne Feiertage, - alfred -
Links may be useful for you:
I tested but it doesn't work actually I want to use it for Auto Cad 2009 and .net 2005 , do you think that it should work ?
Check this solution: