Contact your tech support that insists that this must be installed in Windows 7 mode. Regardless of their level of competence, they have the authority and responsibility to get all authorized employees tied into the correct network procurement. Save a copy of your e-mail asking for assistance as a CYA.

I didn't get you. what is CYA?

I don't know if this will work in Parallels, but here is a solution:

When in Win7, find the Command Prompt; it should be under All Programs\Accessories.

Then, follow this procedure (from http://support.microsoft.com/kb/249873):

RegSvr32.exe has the following command-line options:

Regsvr32 [/u] [/n] [/i[:cmdline]] dllname

/u - Unregister server
/i - Call DllInstall passing it an optional [cmdline]; when used with /u calls dll uninstall
/n - do not call DllRegisterServer; this option must be used with /i
/s - Silent; display no message boxes (added with Windows XP and Windows Vista)

When you use Regsvr32.exe, it attempts to load the component and call its DLLSelfRegister function. If this attempt is successful, Regsvr32.exe displays a dialog box that indicates success. If the attempt is unsuccessful, Regsvr32.exe returns an error message. This may include a Win32 error code. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

193625 (http://support.microsoft.com/kb/193625/ ) WinInet error codes (12001 through 12156)