Access Violation at addres....???

[GeRmIc]

Hi,

I'm writing a C# Library that interacts with an C DLL, the resulting DLL is
used by an application and it works fine on my PC but when i copy the
resulting DLL to another PC running the same application it gives an error

Access violation at address ..... in module ..... Read of address 0000000

Help!

[Nicholas Paldino [.NET/C# MVP]]

It looks like you are trying to read a null pointer somewhere. It would
be impossible to say what is causing it, but you obviously have a reference
set to null somewhere and you are trying to access it (in your unmanaged
code).

Hope this helps.

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"GeRmIc" <Ge****@discussions.microsoft.com> wrote in message
news:89**********************************@microsof t.com...

Hi,

I'm writing a C# Library that interacts with an C DLL, the resulting DLL
is
used by an application and it works fine on my PC but when i copy the
resulting DLL to another PC running the same application it gives an error

Access violation at address ..... in module ..... Read of address 0000000

Help!

[Nicholas Paldino [.NET/C# MVP]]

It looks like you are trying to read a null pointer somewhere. It would
be impossible to say what is causing it, but you obviously have a reference
set to null somewhere and you are trying to access it (in your unmanaged
code).

Hope this helps.

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"GeRmIc" <Ge****@discussions.microsoft.com> wrote in message
news:89**********************************@microsof t.com...

Hi,

I'm writing a C# Library that interacts with an C DLL, the resulting DLL
is
used by an application and it works fine on my PC but when i copy the
resulting DLL to another PC running the same application it gives an error

Access violation at address ..... in module ..... Read of address 0000000

Help!

[GeRmIc]

Hi,

If what you say is the case then why does it work perfectly on my PC.

Both the PCs have the same OS & patches installed. Runs the same application
except that my PC has Visual Studio 2003 installed and the other has the dot
net framework installed.

[Willy Denoyette [MVP]]

The resulting DLL (the .NET assembly) and the C DLL and it's dependent
DLL's (if any) have to be available on all PC's, do they?

Willy.

"GeRmIc" <Ge****@discussions.microsoft.com> wrote in message
news:89**********************************@microsof t.com...

Hi,

I'm writing a C# Library that interacts with an C DLL, the resulting DLL
is
used by an application and it works fine on my PC but when i copy the
resulting DLL to another PC running the same application it gives an error

Access violation at address ..... in module ..... Read of address 0000000

Help!

[GeRmIc]

Hi,

If what you say is the case then why does it work perfectly on my PC.

Both the PCs have the same OS & patches installed. Runs the same application
except that my PC has Visual Studio 2003 installed and the other has the dot
net framework installed.

[Willy Denoyette [MVP]]

The resulting DLL (the .NET assembly) and the C DLL and it's dependent
DLL's (if any) have to be available on all PC's, do they?

Willy.

"GeRmIc" <Ge****@discussions.microsoft.com> wrote in message
news:89**********************************@microsof t.com...

Hi,

I'm writing a C# Library that interacts with an C DLL, the resulting DLL
is
used by an application and it works fine on my PC but when i copy the
resulting DLL to another PC running the same application it gives an error

Access violation at address ..... in module ..... Read of address 0000000

Help!

[GeRmIc]

Hi Willy,

It worked. What I did was to copy the final (C DLL + C# Library) DLL
together with the C# Library to that program directory and then run

regasm XXX.dll /tlb: xxx.tlb (xxx - the C# library)
gacutil /i xxx.dll (xxx - the C# library)

It works!
Thanks