VB/WinAPI, Writing Registry Values in Windows NT (Permissions issue?)

Writing Registry Values in Windows NT (Permissions issue?)

Author	Message
Tonk #1 / 7	Writing Registry Values in Windows NT (Permissions issue?) I am currently working on a program that stores user preferences in the registry. I have a class module that I downloaded from Planet Source Code and have been quite successful in using it to Read/Write/Delete keys and values in the Win95/98 registry. However when I take the same unmodified code and move it WinNT, I cannot write values to the Registry. I have no problems reading values in NT, but RegSetValueExA always returns 5 when I attempt to write. I believe a return code of 5 coresponds to a Permissions error, but I am running my program as Administrator and have Full Permissions on the Key I am attempting to write to. Additonal information: WinNT 4.0 sp4 Writing to HKLM\Software\MyCompany\MyProgrram Working only with string values at this time. Any info or insight would be greatly appriciated. -Chris
Mon, 14 Jan 2002 03:00:00 GMT

Don Bradn #2 / 7	Writing Registry Values in Windows NT (Permissions issue?) Quote: >I have no problems reading values in NT, but RegSetValueExA always >returns 5 when I attempt to write. I believe a return code of 5 >coresponds to a Permissions error, but I am running my program as >Administrator and have Full Permissions on the Key I am attempting to >write to. Possibly a permissions issue, possibly not. Win95/98 will often work with function declares that are "not quite right" while NT is not lenient at all. How does your declare compare to this one: Declare Function RegSetValueEx& Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey&, ByVal lpszValueName$, ByVal dwRes&, ByVal dwType&, ByVal lpDataBuff$, ByVal nSize&) That one is taken from my RegSetValue function, which definitely works in NT. www.arcatapet.com/vbsource/regset.txt Don Bradner MSVB MVP www.arcatapet.com
Tue, 15 Jan 2002 03:00:00 GMT

Tonk #3 / 7	Writing Registry Values in Windows NT (Permissions issue?) The Declare I have been using does match this one. Regardless, I tried to cut and paste the declare here, and got the same result. I also tried using the subprocedure located at the web address specified. Same result. I have checked the permissions on the keys I am trying to write to. Everything seems to be fine. Any other ideas? You're help is very much appriciated. -Chris Quote: >Possibly a permissions issue, possibly not. Win95/98 will often work with >function declares that are "not quite right" while NT is not lenient at all. How >does your declare compare to this one: >Declare Function RegSetValueEx& Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal >hKey&, ByVal lpszValueName$, ByVal dwRes&, ByVal dwType&, ByVal lpDataBuff$, >ByVal nSize&) >That one is taken from my RegSetValue function, which definitely works in NT. >www.arcatapet.com/vbsource/regset.txt >Don Bradner >MSVB MVP >www.arcatapet.com
Tue, 15 Jan 2002 03:00:00 GMT

Microsof #4 / 7	Writing Registry Values in Windows NT (Permissions issue?) I just cam across this myself. Error number 5 is indeed 'Permission denied'. I can't speak to whether you should have any problems or not because you are an administrator. But, I can say that permissions for the registry are set in RegEdit32--not RegEdit. Look there for more insight to your permissions problem. Isaac Citrom
Tue, 15 Jan 2002 03:00:00 GMT

Tonk #5 / 7	Writing Registry Values in Windows NT (Permissions issue?) I have been using Regedt32 to check my permissions and ,to me, everything looks okay. Let me ask this: If can go in and manually change the value using RegEdt32, doesn't that mean that I have permission to change the value in code? Is there something that I might be missing? Thanks again for your help. I appriciate your thoughts. -Chris Quote: >I just cam across this myself. Error number 5 is indeed 'Permission denied'. >I can't speak to whether you should have any problems or not because you are >an administrator. But, I can say that permissions for the registry are set >in RegEdit32--not RegEdit. Look there for more insight to your permissions >problem. >Isaac Citrom
Tue, 15 Jan 2002 03:00:00 GMT

Don Bradn #6 / 7	Writing Registry Values in Windows NT (Permissions issue?) Quote: >The Declare I have been using does match this one. Regardless, I >tried to cut and paste the declare here, and got the same result. I >also tried using the subprocedure located at the web address >specified. Same result. Hmm. I don't know what to tell you. I started a new project with a form and a module. Pasted the text file I pointed you to into the module. Changed one line, to make the HKLM constant public so that it would be usable in the form. Put a command button on the form, with this code in its click event: RegSetValue HKEY_LOCAL_MACHINE, "software\test\test1", "test2", "this is a test" This was built on a Win98 machine and tested there, then made as an executable across the local network to an NT4 Server. Run from there. A quick look with RegEdit confirms that the key and value were created without problems. Don Bradner MSVB MVP www.arcatapet.com
Wed, 16 Jan 2002 03:00:00 GMT

Tonk #7 / 7	Writing Registry Values in Windows NT (Permissions issue?) You are correct: I followed the same steps you did, and the test program worked. It has got to be some obscure bug in the code I was using. Thanks for providing an example that proves the concept. My sanity appriciates it. Regards, -Chris Quote: >>The Declare I have been using does match this one. Regardless, I >>tried to cut and paste the declare here, and got the same result. I >>also tried using the subprocedure located at the web address >>specified. Same result. >Hmm. I don't know what to tell you. I started a new project with a form and a >module. Pasted the text file I pointed you to into the module. Changed one line, >to make the HKLM constant public so that it would be usable in the form. Put a >command button on the form, with this code in its click event: >RegSetValue HKEY_LOCAL_MACHINE, "software\test\test1", "test2", "this is a test" >This was built on a Win98 machine and tested there, then made as an executable >across the local network to an NT4 Server. Run from there. A quick look with >RegEdit confirms that the key and value were created without problems. >Don Bradner >MSVB MVP >www.arcatapet.com
Fri, 18 Jan 2002 03:00:00 GMT

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