Com Addin not getting enabled when i migrate the code from .net framework 3.5 to .net framework 4.5

Hello,

I migrated my C# code from .net 3.5 to .net 4.5. Now i am unable to re enable the com add-in in the excel. Please help if i am missing any steps.

Regards,
Siva prasanth.
pkoivulaAsked:
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pkoivulaConnect With a Mentor Author Commented:
Finally i figured out and got the issue resolved. here are the steps i performed.

1. updated msaddndr.dll version to 6.1.98.16, this dll was used in shim project.

2.Created a config file with name excel.exe.config and copied the file in the  folder of excel.exe location (Example for office 2007 it is C:\Program Files\Microsoft Office\Office12). The content of the config file is :

<?xml version="1.0"?>
   <configuration>
    <startup useLegacyV2RuntimeActivationPolicy="true">
     <requiredRuntime version="v4.0.30319" />
  <supportedRuntime version="v4.0.30319" />
    </startup>
</configuration>

Performing above changes resolved the issue.
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David Johnson, CD, MVPOwnerCommented:
what errors are being shown on the screen and in the event logs
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pkoivulaAuthor Commented:
I've requested that this question be deleted for the following reason:

I didn't receive appropriate response even after posting comments the expert answer.
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David Johnson, CD, MVPOwnerCommented:
YOU  didn't answer my questions
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pkoivulaAuthor Commented:
David,
I earlier answered the question and deleted as i didn't get any updates.

Here is the error:

       Here is the error

    *** Assembly Binder Log Entry  (2/3/2015 @ 2:30:54 PM) ***

    The operation failed.
    Bind result: hr = 0x80070002. The system cannot find the file specified.

    Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll
    Running under executable  C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
    --- A detailed error log follows.

    === Pre-bind state information ===
    LOG: User = Domain\Username
    LOG: DisplayName = MyAssembly.resources, Version=2.0.73.99, Culture=en, PublicKeyToken=a68d408e0b55e55b
     (Fully-specified)
    LOG: Appbase = file:///C:/Program Files/MyCompany/MyProduct/
    LOG: Initial PrivatePath = NULL
    LOG: Dynamic Base = NULL
    LOG: Cache Base = NULL
    LOG: AppName = NULL
    Calling assembly : MyAssembly, Version=2.0.73.99, Culture=neutral, PublicKeyToken=a68d408e0b55e55b.
    ===
    LOG: This bind starts in default load context.
    LOG: No application configuration file found.
    LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\machine.config.
    LOG: Post-policy reference: MyAssembly.resources, Version=2.0.73.99, Culture=en, PublicKeyToken=a68d408e0b55e55b
    LOG: The same bind was seen before, and was failed with hr = 0x80070002.
    ERR: Unrecoverable error occurred during pre-download check (hr = 0x80070002).
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pkoivulaAuthor Commented:
Any updates..
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David Johnson, CD, MVPOwnerCommented:
   LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\machine.config.
    LOG: Post-policy reference: MyAssembly.resources, Version=2.0.73.99, Culture=en, PublicKeyToken=a68d408e0b55e55b
Still using .net 3.5

Bind result: hr = 0x80070002. The system cannot find the file specified. Which file is it looking for..

can you run this in a debugger or use procmon and exclude other processes to see what file is failing?
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pkoivulaAuthor Commented:
David,

I am seeing several results  for excel.exe . either success or name not found.  I couldnt find error.
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pkoivulaAuthor Commented:
Any updates on this question ?
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pkoivulaAuthor Commented:
David Johnson , do this statement helps us for further analysis.

Unhandled exception at 0x0F80B548 (********ShimProject.dll) in EXCEL.EXE: 0xC0000005: Access violation reading location 0x00000000.
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pkoivulaAuthor Commented:
Got the sol;ution to resolve Unhandled exception at 0x0F80B548 (********ShimProject.dll) in EXCEL.EXE: 0xC0000005: Access violation reading location 0x00000000.

I updated msaddndr.dll version to 6.1.98.16.
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pkoivulaAuthor Commented:
This can be graded as A because it is working fine and i tested the changes on excel 2007 and excel 2010.
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