No, its a DOS command line tool. The visual studio tools directory has to be in your path.

Start > Programs > Microsoft visual Studio .NET 2003 > Visual Studio .NET Tools > Visual Studio .NET 2003 Command Prompt

or just look for

%comspec% /k "C:\Program Files\Microsoft Visual Studio .NET 2003\Common7\Tools\vsvars32.bat"

I add this command to my Visual studio external tools menu to make it easy to get to.

>David,
>
>I just experienced the same compile error referred to in this thread.
>Are you talking about entering the line of code in the VS Command Window? I tried and got an error sn is not a valid command. Maybe you can direct me to the command prompt.
>
>Thanks
>Terry Carroll
>
>
>
>Use
>
>

sn -k keyPair.snk

>
>from the Visual Studio command prompt to create it.
>
>>I'm trying to implement stepping into the MM classes during debug. I followed the instruction in the: Stepping through MM .NET Code in the Debugger help topic, but no good. So, i decided to build the framework, but i get the following error:
>>Cryptographic failure while signing assembly 'C:\Program Files\Mere Mortals .NET Framework 2003\Mere Mortals Framework\obj\Debug\Mere Mortals Framework.dll' -- 'Error reading key file 'keyPair.snk' -- The system cannot find the file specified. '
>>
>>Mike