OK, taking this a step further, this is what happens.

Applied VFP7-SP1 to my installation.

Install the OLEDB driver and whatnot as part of an InstallShield-Express-VFPEdition application (I included the .msm files as part of "what needs to be installed").

Install the setup.exe on a Win2K computer that has already had MDAC 2.6-SP1 and MDAC 2.7 installed. Using the local Administrator account.

Create a simple .vbs and run it, logged on as local Administrator. This runs fine.

cCacheDir = "e:\db\cache.dbc"
	On Error Resume Next
	Set oConn = CreateObject("ADODB.Connection")
	cConn = "Provider=VFPOLEDB.1;Data Source=" & cCacheDir
	oConn.Open cConn
	If Err.Number <> 0 Then
		WScript.Echo Err.Number
		WScript.Echo Err.Description
		WScript.Echo Err.HelpContext
		WScript.Echo Err.Source
	End If
	WScript.Echo "Complete"

Create a local user account, member of local Administrators. Create a COM+ server package that runs under this account. Create a COM Scriptlet .wsc that when a given method is called, it does this to launch the .vbs script out-of-process:

	cExec =  "cmd /c cscript.exe -nologo e:\wintemp\cachetouch.vbs"
	Set oProc = GetObject("winmgmts:!Win32_Process")
	oCMD = oProc.Create( cExec,,,iPID )

The COM scriptlet is instantiated by an .ASP page (running in High-Isolated mode on IIS5)

If I am logged on to the local machine with the same user credentials as the COM package, the script gets executed, I see the CMD instance and the scripit runs fine.

I get the error:

	ERROR #3706 - Provider cannot be found. It may not be properly installed.

1. If no user is locally logged on.
2. If the local Administrator is locally logged on.

What gives?