>The key point to C:\WINDOWS\Microsoft.NET\Framework
>and under this directory I have 2 folders
>
>C:\WINDOWS\Microsoft.NET\Framework\v1.0.2914
>C:\WINDOWS\Microsoft.NET\Framework\v1.0.3705
>
>I think that was 2 different versions of .NET framework
>
>May be, I do not understand the question...?

No, I just didn't get the answer <g>... got it now. For some reason I thought you meant there'd be keys below the root key in the registry not in the file system.

+++ Rick ---

>
>
>>Hmmm... what do you have below that root? I see nothing that shows a version number. I suppose you can then check the directories, but talk about a hack...
>>
>>+++ Rick ---
>>
>>>>Any suggestions on what to check to see if .Net is installed and what version of the CLR is available for unmanaged applications calling into .Net via COM interop?
>>>>
>>>>Been looking through the registry and other than some specific keys that can be hacked into parts there seems to be no place where the .Net is officially logged as installed.
>>>>
>>>>Any suggestions?
>>>
>>>
>>>Start with registry:
>>>HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\InstallRoot
>>>
>>>And from the location found under this key, list the folders.
>>>The folders names was the framework versions installed on the computer...
>>>
>>>I have WIN2K, I dont know if the key was the same for other OS.