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QuestionHow can I access to objects in a third-party application? Pin
m.samar23-Aug-09 0:40
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QuestionProducing video Pin
Muammar©22-Aug-09 23:14
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Question64bit woes Pin
mav.northwind22-Aug-09 23:05
mav.northwind22-Aug-09 23:05 
Hi folks!

I have a strange behaviour I cannot explain, perhaps someone who's deep into 64bit development can enlighten me?

I have 2 applications written in C#: A main app (A) and an additional program for updates (U). When A is started and there's something to update, A starts U (using System.Diagnostics.Process) and quits. U in turn updates A's files and restarts A afterwards. So far, so simple. Worked for years (on 32bit Windows) without problems.

Now recently while doing some testing on Win7RC 64bit I discovered that the automatic update fails. When there's something to update, Windows tells me after a while that U doesn't work anymore and kills it (leaving an exception in Kernelbase.dll in the event log).

After some debugging I found that U hangs as soon as I try to show a non modal dialog containing at least one control (using new Form().Show(); showed the empty dialog OK and didn't hang). When I modified U's status dialog to add all controls inside its Load event and not already inside InitializeComponent(), the Updater hangs when I add the first control to the Form's Controls collection. Confused | :confused:

A was compiled with x86 as target (because I need to use 32bit third-party COM objects) and U with AnyCPU (because it didn't have any specific external dependencies I thought it doesn't matter which processor architecture it's compiled for), thus running as 64bit application on a 64bit OS.
After switching U to x86 as well it worked, but I still don't know why!

With A being x86 and U being AnyCPU I can't even get a MessageBox to show (although the call to MessageBox.Show() doesn't hang the application).

Unfortunately I don't have the faintest idea what's going on here. Does anyone have a clue?

Thanks in advance,
mav

--
Black holes are the places where God divided by 0...

AnswerRe: 64bit woes Pin
Luc Pattyn22-Aug-09 23:33
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mav.northwind22-Aug-09 23:56
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Questionlast record is not deleted Pin
mahdi198422-Aug-09 21:10
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QuestionWhat is the method in C# like the method - "repaint()" in JAVA??? Pin
TAFIN22-Aug-09 20:11
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AnswerRe: What is the method in C# like the method - "repaint()" in JAVA??? Pin
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OriginalGriff22-Aug-09 21:09
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GeneralRe: What is the method in C# like the method - "repaint()" in JAVA??? Pin
TAFIN22-Aug-09 21:40
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GeneralRe: What is the method in C# like the method - "repaint()" in JAVA??? Pin
OriginalGriff22-Aug-09 21:54
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GeneralRe: What is the method in C# like the method - "repaint()" in JAVA??? Pin
TAFIN22-Aug-09 22:28
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AnswerRe: What is the method in C# like the method - "repaint()" in JAVA??? Pin
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Questiondatabase size not changed Pin
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QuestionAppend cookies in httpwebrequest Pin
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Questiona c++ class library/dll in your c# project Pin
Natural_Demon22-Aug-09 5:58
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AnswerRe: a c++ class library/dll in your c# project Pin
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