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64bit Excel Office 2010: Automation error %1 is not a valid Win32 application.

visual basic 4 / 5 / 6

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4 replies to this topic

#1 Jerdzzz

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Posted 18 November 2012 - 10:35 PM


This function works on Microsoft Office 32bit. But when transferring to 64bit, the error "Automation error %1 is not a valid Win32 application" occured.

Private Function CreateUsingManifest(nameOfClass As String) As Object
Dim actCtx As Object

Set actCtx = CreateObject("Microsoft.Windows.ActCtx")


On Error GoTo InvalidManifest
Set CreateUsingManifest = actCtx.CreateObject(nameOfClass) 'Error here

Set actCtx = Nothing
On Error GoTo 0
Exit Function

InvalidManifest
:
Err
.Raise "Automation error %1 is not a valid Win32 application."
End Function

#2 Orjan

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Posted 18 November 2012 - 11:45 PM

seems like Microsoft.Windows.ActCtx is the problem here. Correct spelled?

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#3 BlackRabbit

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Posted 19 November 2012 - 07:44 AM

There is a couple of things to be considered:

1- did you check for the library to be present?
2- did you try to import it into your project?
3- are your O.S and .NET framework installed in 64 bit version? cause they will not interact ( 32bits with 64 bits ) in runtime from .NET unless you do ... Assembly synchronization

#4 Jerdzzz

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Posted 19 November 2012 - 05:53 PM

I'm using a 64bit OS right now. I installed here first my 32bit MS Office and it was working fine. Then I uninstalled it and replaced it with a 64bit MS Office and this error "Automation error %1 is not a valid Win32 application." pops up.

#5 WingedPanther73

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Posted 20 November 2012 - 06:45 AM

Sounds like you have a 32bit application trying to interact/launch a 64bit application. That does NOT work well, as seen by your error message. I'm guessing you're compling your VB app as 32bit.

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