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.NET Forum / Languages / C# / March 2008

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signing

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Christopher Pisz - 27 Mar 2008 06:47 GMT
What exactly is signing?
Why is it required for me to sign my application before I use some MS .dll
files (SQL Server Compact 3.5)?
Why is it only checked at runtime and the only hint an unhandled exception
( BadImageFile )?
   The documentation or the exception could have been more descriptive no?
Or better, if it isn't going to run without it, can't I get a compile error
instead?
I don't understand its purpose since all I have provided is a name and a
password...
Bob Powell [MVP] - 27 Mar 2008 19:23 GMT
Signing or strong-naming enables your DLL or executable to be identified in
a very precise way.

The strong name includes the DLL name, it's version, the culture for which
it is intended by default and a unique strong-name-key that includes a
public and private part.

This combination of information enables the system to install different
versions of the DLL "side by side" in the Global Assembly Cache or GAC. In
fact, although the GAC appears to be a single directory it is in fact a
large tree of directories managed by the Fusion system.

Now then, The big question is.. Are you using Visual Studio Express 2008 and
does this help you??

http://download.microsoft.com/download/D/D/1/DD18043A-FE86-4F57-AC22-791B30E6F04
B/ExpressReadme.htm


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Visual C#, System.Drawing

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> What exactly is signing?
> Why is it required for me to sign my application before I use some MS .dll
[quoted text clipped - 6 lines]
> I don't understand its purpose since all I have provided is a name and a
> password...
Christopher Pisz - 28 Mar 2008 00:50 GMT
>> What exactly is signing?
>> Why is it required for me to sign my application before I use some MS
[quoted text clipped - 6 lines]
>> I don't understand its purpose since all I have provided is a name and a
>> password...

> Signing or strong-naming enables your DLL or executable to be identified
> in a very precise way.
[quoted text clipped - 12 lines]
>
> http://download.microsoft.com/download/D/D/1/DD18043A-FE86-4F57-AC22-791B30E6F04
B/ExpressReadme.htm

Signing makes my error go away. I am not using 2008 yet. I can't use express
from what I understand, because of the functionality I need. Saving
paychecks for the professional edition. Until then, I have to use 2005
professional.

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