System.Environment.MachineName exception
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Hi, I'm using the following code to get the Machine name in an app System.Environment.MachineName On most computers this works fine but on one of our testers computers (machine is a windows 2000 desktop pc, not a networking share either), it's throwing the following exception. Request for the permission of type System.Security.Permissions.EnvironmentPermission, mscorlib, Version = 1.0.50000.0, Culture = neutral, publicKeyToken = blahblahblah failed. I have no idea what is causing this. I tried messing around with the .Net Configuration. Figured mscorlib didn't have permission rights. also......... I can't get any computer information in general. Trying to do some WMI core queries as well from code and getting a "Security Error" Exception. Below is the code that gets the disk size. public string GetsDiskSize(){ ManagementClass cimobject; ManagementObjectCollection moc; cimobject = new ManagementClass("Win32_DiskDrive"); moc = cimobject.GetInstances(); try { // BIOS INFO foreach(ManagementObject mo in moc){ this.m_sDiskSize = GetSystemValue("Size",mo); mo.Dispose(); break; } } catch(Exception ex){ System.Windows.Forms.MessageBox.Show("GetsDiskSize " + ex.Message); cimobject.Dispose(); moc.Dispose(); return ex.Message; } cimobject.Dispose(); moc.Dispose(); return this.m_sDiskSize; } Thx for your time, Paul
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Hi, I'm using the following code to get the Machine name in an app System.Environment.MachineName On most computers this works fine but on one of our testers computers (machine is a windows 2000 desktop pc, not a networking share either), it's throwing the following exception. Request for the permission of type System.Security.Permissions.EnvironmentPermission, mscorlib, Version = 1.0.50000.0, Culture = neutral, publicKeyToken = blahblahblah failed. I have no idea what is causing this. I tried messing around with the .Net Configuration. Figured mscorlib didn't have permission rights. also......... I can't get any computer information in general. Trying to do some WMI core queries as well from code and getting a "Security Error" Exception. Below is the code that gets the disk size. public string GetsDiskSize(){ ManagementClass cimobject; ManagementObjectCollection moc; cimobject = new ManagementClass("Win32_DiskDrive"); moc = cimobject.GetInstances(); try { // BIOS INFO foreach(ManagementObject mo in moc){ this.m_sDiskSize = GetSystemValue("Size",mo); mo.Dispose(); break; } } catch(Exception ex){ System.Windows.Forms.MessageBox.Show("GetsDiskSize " + ex.Message); cimobject.Dispose(); moc.Dispose(); return ex.Message; } cimobject.Dispose(); moc.Dispose(); return this.m_sDiskSize; } Thx for your time, Paul
What are the permissions of the person running the program (your tester) on the machine?
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What are the permissions of the person running the program (your tester) on the machine?
User is logged in as an admin. Not sure what you mean by permission?
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User is logged in as an admin. Not sure what you mean by permission?
That's what I meant. So did you use the configuration utility to check the permissions of your program's DLL? That's probably the one that doesn't have rights, not mscorlib.
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That's what I meant. So did you use the configuration utility to check the permissions of your program's DLL? That's probably the one that doesn't have rights, not mscorlib.
Since I have limited time with my client, it would be best if I could simulate this error on my local machine. Can you think of any ways I can give this app, assemblies, groups less rigths, ty
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Since I have limited time with my client, it would be best if I could simulate this error on my local machine. Can you think of any ways I can give this app, assemblies, groups less rigths, ty
I have to leave work in just a couple of minutes, but if I don't see an answer posted for you later, I'll try it from home. So is your assembly signed, and if so, how?
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Hi, I'm using the following code to get the Machine name in an app System.Environment.MachineName On most computers this works fine but on one of our testers computers (machine is a windows 2000 desktop pc, not a networking share either), it's throwing the following exception. Request for the permission of type System.Security.Permissions.EnvironmentPermission, mscorlib, Version = 1.0.50000.0, Culture = neutral, publicKeyToken = blahblahblah failed. I have no idea what is causing this. I tried messing around with the .Net Configuration. Figured mscorlib didn't have permission rights. also......... I can't get any computer information in general. Trying to do some WMI core queries as well from code and getting a "Security Error" Exception. Below is the code that gets the disk size. public string GetsDiskSize(){ ManagementClass cimobject; ManagementObjectCollection moc; cimobject = new ManagementClass("Win32_DiskDrive"); moc = cimobject.GetInstances(); try { // BIOS INFO foreach(ManagementObject mo in moc){ this.m_sDiskSize = GetSystemValue("Size",mo); mo.Dispose(); break; } } catch(Exception ex){ System.Windows.Forms.MessageBox.Show("GetsDiskSize " + ex.Message); cimobject.Dispose(); moc.Dispose(); return ex.Message; } cimobject.Dispose(); moc.Dispose(); return this.m_sDiskSize; } Thx for your time, Paul
Are they running this locally or across the network? If it's the latter case, you must create a code group that grants the application (by a myriad of evidence) so that it has the necessary permissions (or just take the cheap route and grant your code FullTrust). If you use third-party controls in your application, you're better off using site evidence (like the Url membership condition, using a URL like ftp://NETSERVER1/ShareName/AppDirectory/\*). Read Understanding .NET Code Access Security[^] for more information.
Microsoft MVP, Visual C# My Articles
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Are they running this locally or across the network? If it's the latter case, you must create a code group that grants the application (by a myriad of evidence) so that it has the necessary permissions (or just take the cheap route and grant your code FullTrust). If you use third-party controls in your application, you're better off using site evidence (like the Url membership condition, using a URL like ftp://NETSERVER1/ShareName/AppDirectory/\*). Read Understanding .NET Code Access Security[^] for more information.
Microsoft MVP, Visual C# My Articles
This is just running locally. If you know of anyway I could simulate this locally that would be helpful as well. thx Paul
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This is just running locally. If you know of anyway I could simulate this locally that would be helpful as well. thx Paul
Last message was a little vague, sorry This is just running locally (not over a network). Since I have limited time with my client was wonderiing if you know of anyway I could simulate this on my local machine and is there was a way to include a security policy with the executeable or deployment package.
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I have to leave work in just a couple of minutes, but if I don't see an answer posted for you later, I'll try it from home. So is your assembly signed, and if so, how?
Hi, I don't believe it is signed. If it is I didn't do it. :) thx, Paul
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This is just running locally. If you know of anyway I could simulate this locally that would be helpful as well. thx Paul
Create a local user on your machine with the same permissions as the test users (like perhaps they're just in the "Domain Users" group). Log in as that user and test it. If you want to debug your app, don't forget to move the source code to an accessible directory (or give that new user permissions to access your directories) and recompile so that the path to the PDB files is correct.
Microsoft MVP, Visual C# My Articles
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Create a local user on your machine with the same permissions as the test users (like perhaps they're just in the "Domain Users" group). Log in as that user and test it. If you want to debug your app, don't forget to move the source code to an accessible directory (or give that new user permissions to access your directories) and recompile so that the path to the PDB files is correct.
Microsoft MVP, Visual C# My Articles
I'm not sure what test users permissions are??? sorry, but I created a new user with guests rights. What could I possibly change? (Something .net relative perhaps, changing assembly trust, library trust, executable trust .......) Thanks, Paul