Creating an instance of the COM component with CLSID {29AB7A12-B531-450E-8F7A-EA94C2F3C05F} from the IClassFactory failed due to the following error: 800401f

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Hi,

I am getting the following error for line

oRDOSession = New Redemption.RDOSession

System.Runtime.InteropServices.COMException (0x800401FA): Creating an instance of the COM component with CLSID {29AB7A12-B531-450E-8F7A-EA94C2F3C05F} from the IClassFactory failed due to the following error: 800401fa.

Using redemption 5.0 dll on 64 bit Windows 8.1 development system.
Can you let us know what might be the cause ?

Posted 5-Jun-15 1:38am

yogan1

Updated 8-Dec-16 21:12pm

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Frankie-C · Answer 1 · 2015-06-05T01:54:00

Solution 1

If you google for the error 0x800401FA, you'll get: "CO_E_WRONGOSFORAPP - Wrong operating system or operating system version for the application".
It is probably telling you that the dll version is not correct, i.e. you have a 32 bits version on 64bits os, or you have a 64bit version on a 64bits os, but your outlook is 32bits.

Posted 5-Jun-15 1:54am

Frankie-C

Comments

vigorniensis 6-Dec-16 9:20am

I have exactly the same occurrence with 64-Bit Windows 8.1 Enterprise and 32-bit Redemption 5.7.0.0 . Does this mean that I have to use the x64 bit version of Redemption? [Outlook is 32-bit version).

[2nd Update Posting] - Have now tried the x64 version of the Redemption.dll and obtain the same error message.

Did any further information on this issue come to light?

vigorniensis · Answer 2 · 2016-12-08T21:12:00

Solution 2

This solution seemed to work for my issue.
Go to Project Properties and go to the Compile tab.
I found that if I hatched the 'Prefer 32-bit' option box that the program worked OK.
[Vigorniensis]

Posted 8-Dec-16 21:12pm

vigorniensis