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error in connection to mdb file: System.Data.OleDb.OleDbException: An outgoing call cannot be made since the application is dispatching an input-synchronous call.

Posted on 2010-11-08
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Last Modified: 2013-12-17
hi,

why I get error when opening connection to microsoft access mdb file:

System.Data.OleDb.OleDbException: An outgoing call cannot be made since the application is dispatching an input-synchronous call.
 
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Question by:njgroup
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8 Comments
 

Author Comment

by:njgroup
ID: 34089370
the project was working file in windows xp, but I got this error in windows 7
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LVL 83

Expert Comment

by:CodeCruiser
ID: 34094935
Where is the MDB file located?
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Author Comment

by:njgroup
ID: 34157371
in C: drive
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LVL 83

Expert Comment

by:CodeCruiser
ID: 34158208
Windows 7 does not allow access to C drive and many other folders (such as windows and program files). You need to use some other folder (such as your own program folder).
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Author Comment

by:njgroup
ID: 34162271
but I created new folder in C drive and I grant access to that folder, even I ran the software as administrator !
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LVL 83

Expert Comment

by:CodeCruiser
ID: 34162346
Its down to UAC (User Access Control). It blocks certain actions even if you are administrator and it prompts you on many occassions (such as when you run an exe).
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Author Comment

by:njgroup
ID: 34180146
so how to overcome the problem, what do you think?
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LVL 83

Accepted Solution

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CodeCruiser earned 500 total points
ID: 34180274
Keep the file in a location which does not trigger the UAC.
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