could u say how to resolve "access violation reading Location" exception in VC++

[raghunadhs]

Hi all,
i have developed a ".dll" in vc++, regarding to find out CRC32. and in my V.B 6.0 application i am calling that .dll.

If i run my v.b application it is working means.. i am able to find crc also. where as if i run the .exe of my v.b application, a runtime error is coming. the error is like this....
"Unhadled exception at 0x10001045(crc32example.dll) in latest.exe 0x0000005 Access violation reading locatioln 0x0017d000"

Actually i am new to VC++. and i am unable to come to an understand why this is behaving like this. even though, v.b application is able to call .dll and able to work properly, the exe of v.b applicaiton is not working...

could u please suggest me any way to resolve this issue....

Thanks:
regards:
raghunadhs.

[Banfa]

"Unhadled exception at 0x10001045(crc32example.dll) in latest.exe 0x0000005 Access violation reading locatioln 0x0017d000"

Are you sure you don't mean 0xC000005 as the exception number. This would be an attempt to access memory at an invalid address.

What you could do is use the MSVC++ debugger. When debugging a DLL you can specifiy an executable to run that will load the DLL in the project settings.

THen when the access violation occurs the debugger should halt the program, you will be able to locate the position in your code that is causing the problem and, possibly, see what that problem is by examining the value of the variables in use.

You could also set break points in the DLL code and step through the execution of your code.

[raghunadhs]

Thanks Banfa,
I will do accordingly, what u suggested, and let u know feed back..
regards:
raghunadhs.

[gnanapoongothai]

May i know why did u choose the crc to a dll rather than application. under what constrain. Plx do reply it will be helpful to me too.