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AppDomain Probing issue

Hello,

I created a small app which acts as a services manager. I basically drop a
DLL in a Services folder and set the frequency through the application for
how often do I want the code in the assembly to run (scheduler).

I created a seperate AppDomain here is the code:
....
AppDomainSetup ads = new AppDomainSetup( );
string path =
Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x
ecutablePath)," ");
ads.Application Base = path + "Services";
ads.PrivateBinP athProbe = path + "Services";
ads.PrivateBinP ath = path + "Services";
ads.DisallowBin dingRedirects = true;
Tools.ShowInfo( path);
SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);

....

The above code was placed in the constructor. When I look through the
assemblies (GetAssemblies) to see a listing of all classes loaded, I don't
see the classes in the dll located in that services folder, which made me
think that it is not being probed. Anything I'm doing wrong?
--
Abdellah Elamiri
..net Developer
Efficacy through simplicity
Nov 16 '05 #1
8 5085
The code you have by itself won't cause the assemblies in the Services
folder to be loaded -- it just creates a AppDomain. The assemblies will be
loaded the first time you create an instance of an object from one of them
(e.g., with AppDomain.Creat eInstance()) or when you explicitly load them
(e.g., with AppDomain.Load( )).

Ken

"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:OE******** ******@TK2MSFTN GP11.phx.gbl...
Hello,

I created a small app which acts as a services manager. I basically drop a
DLL in a Services folder and set the frequency through the application for
how often do I want the code in the assembly to run (scheduler).

I created a seperate AppDomain here is the code:
...
AppDomainSetup ads = new AppDomainSetup( );
string path =
Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x ecutablePath)," ");
ads.Application Base = path + "Services";
ads.PrivateBinP athProbe = path + "Services";
ads.PrivateBinP ath = path + "Services";
ads.DisallowBin dingRedirects = true;
Tools.ShowInfo( path);
SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);

...

The above code was placed in the constructor. When I look through the
assemblies (GetAssemblies) to see a listing of all classes loaded, I don't
see the classes in the dll located in that services folder, which made me
think that it is not being probed. Anything I'm doing wrong?
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity

Nov 16 '05 #2
In the code you have posted you have created the domain. but you haven't
loaded the assembly yet.

On the created domain you should call Load and pass the assembly which you
are trying to load as a param.

This time you don't have to pass any path information because that was
already supplied to the AppDomainSetup object.

regards,
Abhishek.

"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:OE******** ******@TK2MSFTN GP11.phx.gbl...
Hello,

I created a small app which acts as a services manager. I basically drop a
DLL in a Services folder and set the frequency through the application for
how often do I want the code in the assembly to run (scheduler).

I created a seperate AppDomain here is the code:
...
AppDomainSetup ads = new AppDomainSetup( );
string path =
Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x ecutablePath)," ");
ads.Application Base = path + "Services";
ads.PrivateBinP athProbe = path + "Services";
ads.PrivateBinP ath = path + "Services";
ads.DisallowBin dingRedirects = true;
Tools.ShowInfo( path);
SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);

...

The above code was placed in the constructor. When I look through the
assemblies (GetAssemblies) to see a listing of all classes loaded, I don't
see the classes in the dll located in that services folder, which made me
think that it is not being probed. Anything I'm doing wrong?
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity

Nov 16 '05 #3
Thanks for the replies, but now I'm getting a different error

Additional information: Insufficient state to deserialize the object. More
information is needed.

this occurs at this line
OwnerForm.SvcBi n.Load("Clinton Services");

SvcBin is an AppDomain created by the OwnerForm, OwnerForm is simply the
parent windows form
--
Abdellah Elamiri
..net Developer
Efficacy through simplicity
"Abhishek Srivastava" <ab******@nospa m.net> wrote in message
news:uK******** ******@TK2MSFTN GP12.phx.gbl...
In the code you have posted you have created the domain. but you haven't
loaded the assembly yet.

On the created domain you should call Load and pass the assembly which you
are trying to load as a param.

This time you don't have to pass any path information because that was
already supplied to the AppDomainSetup object.

regards,
Abhishek.

"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:OE******** ******@TK2MSFTN GP11.phx.gbl...
Hello,

I created a small app which acts as a services manager. I basically drop a DLL in a Services folder and set the frequency through the application for how often do I want the code in the assembly to run (scheduler).

I created a seperate AppDomain here is the code:
...
AppDomainSetup ads = new AppDomainSetup( );
string path =

Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x
ecutablePath)," ");
ads.Application Base = path + "Services";
ads.PrivateBinP athProbe = path + "Services";
ads.PrivateBinP ath = path + "Services";
ads.DisallowBin dingRedirects = true;
Tools.ShowInfo( path);
SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);

...

The above code was placed in the constructor. When I look through the
assemblies (GetAssemblies) to see a listing of all classes loaded, I don't see the classes in the dll located in that services folder, which made me think that it is not being probed. Anything I'm doing wrong?
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity


Nov 16 '05 #4
When you call AppDomain.Load( ) from a different AppDomain than the one in
which the assembly is loaded, you can often run into this problem. What's
happened is the assembly is indeed loaded into the other app domain. But, it
then attempts to return the assembly reference to the calling AppDomain.
That requires the calling AppDomain to load the assembly as well. But, since
the assembly isn't in the calling AppDomain's probing path (current
directory), the load fails.

Ken
"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:%2******** **********@TK2M SFTNGP12.phx.gb l...
Thanks for the replies, but now I'm getting a different error

Additional information: Insufficient state to deserialize the object. More information is needed.

this occurs at this line
OwnerForm.SvcBi n.Load("Clinton Services");

SvcBin is an AppDomain created by the OwnerForm, OwnerForm is simply the
parent windows form
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity
"Abhishek Srivastava" <ab******@nospa m.net> wrote in message
news:uK******** ******@TK2MSFTN GP12.phx.gbl...
In the code you have posted you have created the domain. but you haven't
loaded the assembly yet.

On the created domain you should call Load and pass the assembly which you
are trying to load as a param.

This time you don't have to pass any path information because that was
already supplied to the AppDomainSetup object.

regards,
Abhishek.

"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:OE******** ******@TK2MSFTN GP11.phx.gbl...
Hello,

I created a small app which acts as a services manager. I basically drop
a DLL in a Services folder and set the frequency through the application for how often do I want the code in the assembly to run (scheduler).

I created a seperate AppDomain here is the code:
...
AppDomainSetup ads = new AppDomainSetup( );
string path =

Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x ecutablePath)," ");
ads.Application Base = path + "Services";
ads.PrivateBinP athProbe = path + "Services";
ads.PrivateBinP ath = path + "Services";
ads.DisallowBin dingRedirects = true;
Tools.ShowInfo( path);
SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);

...

The above code was placed in the constructor. When I look through the
assemblies (GetAssemblies) to see a listing of all classes loaded, I don't see the classes in the dll located in that services folder, which made me think that it is not being probed. Anything I'm doing wrong?
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity



Nov 16 '05 #5
That helped! thanks a lot everyone who answered

--
Abdellah Elamiri
..net Developer
Efficacy through simplicity
"Ken Kolda" <ke*******@elli emae-nospamplease.co m> wrote in message
news:ui******** ******@tk2msftn gp13.phx.gbl...
When you call AppDomain.Load( ) from a different AppDomain than the one in
which the assembly is loaded, you can often run into this problem. What's
happened is the assembly is indeed loaded into the other app domain. But, it then attempts to return the assembly reference to the calling AppDomain.
That requires the calling AppDomain to load the assembly as well. But, since the assembly isn't in the calling AppDomain's probing path (current
directory), the load fails.

Ken
"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:%2******** **********@TK2M SFTNGP12.phx.gb l...
Thanks for the replies, but now I'm getting a different error

Additional information: Insufficient state to deserialize the object.

More
information is needed.

this occurs at this line
OwnerForm.SvcBi n.Load("Clinton Services");

SvcBin is an AppDomain created by the OwnerForm, OwnerForm is simply the
parent windows form
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity
"Abhishek Srivastava" <ab******@nospa m.net> wrote in message
news:uK******** ******@TK2MSFTN GP12.phx.gbl...
In the code you have posted you have created the domain. but you haven't loaded the assembly yet.

On the created domain you should call Load and pass the assembly which you are trying to load as a param.

This time you don't have to pass any path information because that was
already supplied to the AppDomainSetup object.

regards,
Abhishek.

"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message news:OE******** ******@TK2MSFTN GP11.phx.gbl...
> Hello,
>
> I created a small app which acts as a services manager. I basically drop
a
> DLL in a Services folder and set the frequency through the application for
> how often do I want the code in the assembly to run (scheduler).
>
> I created a seperate AppDomain here is the code:
> ...
> AppDomainSetup ads = new AppDomainSetup( );
> string path =
>

Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x > ecutablePath)," ");
> ads.Application Base = path + "Services";
> ads.PrivateBinP athProbe = path + "Services";
> ads.PrivateBinP ath = path + "Services";
> ads.DisallowBin dingRedirects = true;
> Tools.ShowInfo( path);
> SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);
>
> ...
>
> The above code was placed in the constructor. When I look through the > assemblies (GetAssemblies) to see a listing of all classes loaded, I

don't
> see the classes in the dll located in that services folder, which
made me
> think that it is not being probed. Anything I'm doing wrong?
> --
> Abdellah Elamiri
> .net Developer
> Efficacy through simplicity
>
>



Nov 16 '05 #6
Hi Ken,

just curious (never had to deal with this) - how the you load an
assembly in the new appdomain without loading it in the calling one?

Sunny

In article <ui************ **@tk2msftngp13 .phx.gbl>, ken.kolda@ellie mae-
nospamplease.co m says...
When you call AppDomain.Load( ) from a different AppDomain than the one in
which the assembly is loaded, you can often run into this problem. What's
happened is the assembly is indeed loaded into the other app domain. But, it
then attempts to return the assembly reference to the calling AppDomain.
That requires the calling AppDomain to load the assembly as well. But, since
the assembly isn't in the calling AppDomain's probing path (current
directory), the load fails.

Ken
"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:%2******** **********@TK2M SFTNGP12.phx.gb l...
Thanks for the replies, but now I'm getting a different error

Additional information: Insufficient state to deserialize the object.

More
information is needed.

this occurs at this line
OwnerForm.SvcBi n.Load("Clinton Services");

SvcBin is an AppDomain created by the OwnerForm, OwnerForm is simply the
parent windows form
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity
"Abhishek Srivastava" <ab******@nospa m.net> wrote in message
news:uK******** ******@TK2MSFTN GP12.phx.gbl...
In the code you have posted you have created the domain. but you haven't
loaded the assembly yet.

On the created domain you should call Load and pass the assembly which you are trying to load as a param.

This time you don't have to pass any path information because that was
already supplied to the AppDomainSetup object.

regards,
Abhishek.

"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:OE******** ******@TK2MSFTN GP11.phx.gbl...
> Hello,
>
> I created a small app which acts as a services manager. I basically drop
a
> DLL in a Services folder and set the frequency through the application

for
> how often do I want the code in the assembly to run (scheduler).
>
> I created a seperate AppDomain here is the code:
> ...
> AppDomainSetup ads = new AppDomainSetup( );
> string path =
>

Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x > ecutablePath)," ");
> ads.Application Base = path + "Services";
> ads.PrivateBinP athProbe = path + "Services";
> ads.PrivateBinP ath = path + "Services";
> ads.DisallowBin dingRedirects = true;
> Tools.ShowInfo( path);
> SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);
>
> ...
>
> The above code was placed in the constructor. When I look through the
> assemblies (GetAssemblies) to see a listing of all classes loaded, I

don't
> see the classes in the dll located in that services folder, which made

me
> think that it is not being probed. Anything I'm doing wrong?
> --
> Abdellah Elamiri
> .net Developer
> Efficacy through simplicity
>
>



Nov 16 '05 #7
I've done this using the AppDomain.DoCal lback(). Make sure the delegate is
marshal-by-value and have the delegate that's invoked call
AppDomain.Curre ntDomain.Load() . Of course, that means the new appdomain will
have to load the assembly that contains the definition of the class
containing the delegate, so hopefully that's acceptable.

Ken
"Sunny" <su***@newsgrou ps.nospam> wrote in message
news:e$******** ******@TK2MSFTN GP09.phx.gbl...
Hi Ken,

just curious (never had to deal with this) - how the you load an
assembly in the new appdomain without loading it in the calling one?

Sunny

In article <ui************ **@tk2msftngp13 .phx.gbl>, ken.kolda@ellie mae-
nospamplease.co m says...
When you call AppDomain.Load( ) from a different AppDomain than the one in
which the assembly is loaded, you can often run into this problem. What's happened is the assembly is indeed loaded into the other app domain. But, it then attempts to return the assembly reference to the calling AppDomain.
That requires the calling AppDomain to load the assembly as well. But, since the assembly isn't in the calling AppDomain's probing path (current
directory), the load fails.

Ken
"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:%2******** **********@TK2M SFTNGP12.phx.gb l...
Thanks for the replies, but now I'm getting a different error

Additional information: Insufficient state to deserialize the object.

More
information is needed.

this occurs at this line
OwnerForm.SvcBi n.Load("Clinton Services");

SvcBin is an AppDomain created by the OwnerForm, OwnerForm is simply the parent windows form
--
Abdellah Elamiri
.net Developer
Efficacy through simplicity
"Abhishek Srivastava" <ab******@nospa m.net> wrote in message
news:uK******** ******@TK2MSFTN GP12.phx.gbl...
> In the code you have posted you have created the domain. but you haven't > loaded the assembly yet.
>
> On the created domain you should call Load and pass the assembly which
you
> are trying to load as a param.
>
> This time you don't have to pass any path information because that
was > already supplied to the AppDomainSetup object.
>
> regards,
> Abhishek.
>
> "A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message > news:OE******** ******@TK2MSFTN GP11.phx.gbl...
> > Hello,
> >
> > I created a small app which acts as a services manager. I basically drop
a
> > DLL in a Services folder and set the frequency through the

application for
> > how often do I want the code in the assembly to run (scheduler).
> >
> > I created a seperate AppDomain here is the code:
> > ...
> > AppDomainSetup ads = new AppDomainSetup( );
> > string path =
> >
>

Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x
> > ecutablePath)," ");
> > ads.Application Base = path + "Services";
> > ads.PrivateBinP athProbe = path + "Services";
> > ads.PrivateBinP ath = path + "Services";
> > ads.DisallowBin dingRedirects = true;
> > Tools.ShowInfo( path);
> > SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);
> >
> > ...
> >
> > The above code was placed in the constructor. When I look through the > > assemblies (GetAssemblies) to see a listing of all classes loaded, I don't
> > see the classes in the dll located in that services folder, which made me
> > think that it is not being probed. Anything I'm doing wrong?
> > --
> > Abdellah Elamiri
> > .net Developer
> > Efficacy through simplicity
> >
> >
>
>


Nov 16 '05 #8
Thanks

In article <OY************ **@TK2MSFTNGP11 .phx.gbl>, ken.kolda@ellie mae-
nospamplease.co m says...
I've done this using the AppDomain.DoCal lback(). Make sure the delegate is
marshal-by-value and have the delegate that's invoked call
AppDomain.Curre ntDomain.Load() . Of course, that means the new appdomain will
have to load the assembly that contains the definition of the class
containing the delegate, so hopefully that's acceptable.

Ken
"Sunny" <su***@newsgrou ps.nospam> wrote in message
news:e$******** ******@TK2MSFTN GP09.phx.gbl...
Hi Ken,

just curious (never had to deal with this) - how the you load an
assembly in the new appdomain without loading it in the calling one?

Sunny

In article <ui************ **@tk2msftngp13 .phx.gbl>, ken.kolda@ellie mae-
nospamplease.co m says...
When you call AppDomain.Load( ) from a different AppDomain than the one in which the assembly is loaded, you can often run into this problem. What's happened is the assembly is indeed loaded into the other app domain. But, it then attempts to return the assembly reference to the calling AppDomain.
That requires the calling AppDomain to load the assembly as well. But, since the assembly isn't in the calling AppDomain's probing path (current
directory), the load fails.

Ken
"A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message
news:%2******** **********@TK2M SFTNGP12.phx.gb l...
> Thanks for the replies, but now I'm getting a different error
>
> Additional information: Insufficient state to deserialize the object.
More
> information is needed.
>
> this occurs at this line
> OwnerForm.SvcBi n.Load("Clinton Services");
>
> SvcBin is an AppDomain created by the OwnerForm, OwnerForm is simply the > parent windows form
>
>
> --
> Abdellah Elamiri
> .net Developer
> Efficacy through simplicity
> "Abhishek Srivastava" <ab******@nospa m.net> wrote in message
> news:uK******** ******@TK2MSFTN GP12.phx.gbl...
> > In the code you have posted you have created the domain. but you haven't > > loaded the assembly yet.
> >
> > On the created domain you should call Load and pass the assembly which you
> > are trying to load as a param.
> >
> > This time you don't have to pass any path information because that was > > already supplied to the AppDomainSetup object.
> >
> > regards,
> > Abhishek.
> >
> > "A. Elamiri" <abdellahDOTela miriATclintonDO TedutNOSPAM> wrote in message > > news:OE******** ******@TK2MSFTN GP11.phx.gbl...
> > > Hello,
> > >
> > > I created a small app which acts as a services manager. I basically drop
> a
> > > DLL in a Services folder and set the frequency through the application > for
> > > how often do I want the code in the assembly to run (scheduler).
> > >
> > > I created a seperate AppDomain here is the code:
> > > ...
> > > AppDomainSetup ads = new AppDomainSetup( );
> > > string path =
> > >
> >
>
Application.Exe cutablePath.Rep lace(System.IO. Path.GetFileNam e(Application.E x > > > ecutablePath)," ");
> > > ads.Application Base = path + "Services";
> > > ads.PrivateBinP athProbe = path + "Services";
> > > ads.PrivateBinP ath = path + "Services";
> > > ads.DisallowBin dingRedirects = true;
> > > Tools.ShowInfo( path);
> > > SvcBin = AppDomain.Creat eDomain("Servic eAssemblies",nu ll,ads);
> > >
> > > ...
> > >
> > > The above code was placed in the constructor. When I look through the > > > assemblies (GetAssemblies) to see a listing of all classes loaded, I > don't
> > > see the classes in the dll located in that services folder, which made > me
> > > think that it is not being probed. Anything I'm doing wrong?
> > > --
> > > Abdellah Elamiri
> > > .net Developer
> > > Efficacy through simplicity
> > >
> > >
> >
> >
>
>


Nov 16 '05 #9

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jinu1996
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In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
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8841
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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5838
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
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4339
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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4577
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
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1971
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

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