CLR Version under DllHost.exe

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Saar Carmi - 04 Sep 2003 14:05 GMT

Hi

Console application run under the workstation of the CLR. I know how
to host the CLR in unmanaged process and load it as server.

What happens when ServicedComponent runs under COM+ server
application?
Which version of the CLR is loaded in the DllHost.exe process?

If it's the workstation version, how can I make it load the server
version?

Thank you,
Saar

P.S
How does the OS know to load the CLR? Where is written in the assembly
(class library) ?

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Tim Kurtzman - 18 Sep 2003 22:57 GMT

On Win2003, Win2k SP4 and WinXP SP2 you'll get the version of the runtime
that the object is registered to use.

The registration appears as follows (this is automatically generated by
regasm, but if you care about the nitty-gritty details).

Under HKLM\clsid you'll have a registry hive that looks kind of like this

xxxxxx-xxxx-xxxx--xxxxx

|_ InprocServer32

|_ 1.0.3300 RuntimeVersion=v1.0.3705
|_ 1.0.5000 RuntimeVersion=v1.1.4322

We'll look underneath the InprocServer32 key, look for the greatest
assembly version number, and then try and use the version of the runtime
under its RuntimeVersion value.

If we fail to load that version of the runtime, or if you're on a different
platform than those listed above, we'll load the latest version of the
runtime.

Unfortunately, in this scenario there is no way to make it load the server
build.

Tim

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| How does the OS know to load the CLR? Where is written in the assembly
| (class library) ?

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CLR Version under DllHost.exe

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