On trying to install pdfredirect:

I get the install failure message which ends like this:

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MyError As String = Sorry. An error occured while ...Printer failed to install after 30 sec.
   - Error Number = 0:
   - DLL Error Number = 1801: The printer name is invalid.

This error may occur if the Windows Print Spooler is currently "BUSY".

You can try the following:
   1. Reboot your computer and then try installing again, or
   2. Restart the Print Spooler Service and then try installing again.

If the error persists, you may not have permission to install/remove printers. You can:
   1. Contact your computer administrator for help, or
   2. Visit the forum on our web site for help.

Do you want to visit our support forum for help on installation errors?

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I am always logged on as admin. Never ever had any other kind of trouble like this.

Still wouldn't work after a reboot. No other progs running.

Any ideas?