"Creation of login object failed" after MAS generation

Hi everybody,

I am working on CRM Mobile Sales 5.0 SP6. I have performed the initial generation with the .NET Application Studio. It gave me 6 errors and some warnings. Now when I tried to logon my mobile client I 've got following error:

"Creation of login object failed".

Visual Studio is installed on partition "C:\Program Files\" and Mobile Sales on "D:\SAP\"

Has someone any ideas? Thanks in advance,

Mirko