Question

Excel automation object crashes

Asked by: bhagyesht

the following code runs on my pc and 3 other pcs
        Dim xlApp as Excel.Application
        Set xlApp = CreateObject("Excel.Application")
        Dim xlwb As Workbook
        Dim XLSheet As Worksheet
        Set xlwb = xlApp.Workbooks.Open(txtFile.Text)


while it crashes from the EXE on the last line on 3 different pcs (not the ones mentioned above)
txtfile.text is a valid file path

but the following code runs on the same pc
        Dim xlApp
        Set xlApp = CreateObject("Excel.Application")
        Dim xlwb
        Dim XLSheet
        Set xlwb = xlApp.Workbooks.Open(txtFile.Text)

Can anyone explain me why?

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Asked On
2004-04-20 at 03:46:40ID20960232
Tags

excel

,

crash

,

automation

Topic

Microsoft Excel Spreadsheet Software

Participating Experts
2
Points
500
Comments
15

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Answers

 

by: roos01Posted on 2004-04-20 at 04:06:44ID: 10867653

Does all PC's contain the same  excel version. Newer version supporting both (late as early binding) and older only early bindings.
http://www.mvps.org/word/FAQs/InterDev/EarlyvsLateBinding.htm

perhaps this give an aplaination.
regards,
Jeroen

 

by: roos01Posted on 2004-04-20 at 04:19:43ID: 10867728

another option:
canb it be that the actual sheet2 is hidden? you might check this by unhiding all sheets: Format>>sheets>>unhide

 

by: bhagyeshtPosted on 2004-04-20 at 04:32:51ID: 10867798

all pcs have winxp and office xp. the xl file is the same on all pcs

 

by: roos01Posted on 2004-04-20 at 05:52:45ID: 10868273

getting a bit lost here also.
I asume you have all the SP installed and not only SP1 and SP3
will look further
Jeroen

 

by: roos01Posted on 2004-04-22 at 11:19:25ID: 10892084

have just a final suggestion which is based on info in next atricle:

http://support.microsoft.com/default.aspx?scid=kb;en-us;296114&Product=xlw

Can it be that there are restriction on user level concerning the registry usage?

 

by: bhagyeshtPosted on 2004-04-23 at 02:17:08ID: 10897532

sorry for the delay in reply,
All have sp1 updated and all users are admins.

 

by: roos01Posted on 2004-04-29 at 00:48:05ID: 10946820

Is there some reason why you want to use early binding (Dim xlApp as Excel.Application) and not using late binding: (Dim xlApp as Object) using latebinding won't use the reference file.
In you second example it seems excel is setting it automatically to late binding.
Although on this level early  binding should not be a problem. It might be so that the user which use the example with early binding doesn't have that much rights to change the registry. using references will change the registry settings for excel. if the file is created with an newer or older version of the object library of excel and there is no right to the registry then excel might crash/return errors).

I hope this explains it a bit for you.
regards,
Jeroen

 

by: bhagyeshtPosted on 2004-05-05 at 22:05:35ID: 11002529

All the users have rights to change the registry,
the version of excel is the same on all the pcs
I have already deployed the application with late binding, this question is just to try to get an explaination as it puzzles me.
only diff where it works and doesnt work is where it works has either .net studio or visual studio. where it doesnt work doesnt have any.

 

by: bhagyeshtPosted on 2004-05-05 at 22:06:07ID: 11002534

increasing the points from 250 to 500 for a valid explaination

 

by: roos01Posted on 2004-05-06 at 05:28:32ID: 11004898

Hi bhagyesht,
your explantation of the situation is very good to see which circumstances there are. the only thing I can think about is that the pc's where it works have there own debugger (from .net an visual studio) and therefor it won't crash (although it should not crash at all). I saw something likely with lotus notes. has also its own debuger. This didn't made some applciations crash and run correctly. you might check in the registry under controll set>debugger (somthing)

I can imagine that the reason why it crashes is that the combination:
Dim xlApp as Excel.Application
Set xlApp = CreateObject("Excel.Application")
is of type early binding.

what is the value of: txtFile.Text can it be that there is some space in it? or is it used to open all files?

I don't have a clue where to look at now and you made me also very curious about the solution.
regards,
Jeroen

 

by: SteinerPosted on 2004-05-06 at 05:41:33ID: 11005002

Maybe your prog crashes somewhere earlier and this is the first point where you notice it, so it could be like:

1. your app uses other libraries, too (at least some Visual Basic runtimes, eg. MSVBVM60.dll)
2. Office was installed before .net studio
3. while installing .net studio some libraries were updated without notification
4. now your program starts, and one of those libraries already produces an error while loading it
5. I've seen the effect that libraries that your prog wanted to load after the critical lib aren't loaded at all (in one case I could not even use basic string functionality ;-( )
6. so the Excel lib is not loaded properly
7. if you use late binding, that does not matter, but with early binding, you have a problem now

Remember, this is just a theory. So solve this one, you should check ALL libraries your programm uses, not just whether they are there but whether they have the same version.

Greets
Steiner

 

by: SteinerPosted on 2004-05-06 at 05:46:51ID: 11005047

Oh, and check the paths leading to the libraries, too. Sometimes one lib is installed more than once and you'll have difficulties on finding which one is currently in use. For example a reference to "Visual Basic for Applications" might lead to:
VBAEN32.olb
VEN2232.olb
VBAEND32.olb
MSVBVM60.dll
MSVBVM50.dll
and 2 other files under Microsoft Sharec file where the full path does not fit into the dialog...

 

by: bhagyeshtPosted on 2004-05-06 at 21:29:45ID: 11011985

Hi roos01,
There was no space in the file name.
But presence of debugger.... now thats possible but still how?

Regards,
Bhagyesh

 

by: bhagyeshtPosted on 2004-05-06 at 21:37:09ID: 11012006

Hi roos01,
1. All VB programs use VB runtime.
2. where it crashes as mentioned in the earlier post doesnt have studio.
3. void due to 2
4. Didnt quite understand this
5. Na I hit a msgbox after every load to find out where it crashed it crashed at Excel.workbook
6. Excel.application starts hence ruled out
7. great! I am now aware that I have a problem. I already knew that there is a problem difficult part is knowing why its there.


Regards,
Bhagyesh

 

by: bhagyeshtPosted on 2004-05-06 at 21:37:43ID: 11012010

sorry the last post was not for roos01 but Steiner


Regards,
Bhagyesh

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