[tex-live] tlpmgui starts in the wrong mode under Win32

[Dirk Ullrich]

I have tried to install TL2007 (070128 build) on a Win32 Box (WinXP SP2).
When starting tlpmgui from the CD the program always starts in
maintenance mode claiming there is a TL installation with root dir
"D:\programs". Same error when using the current tlpm from
ftp://ftp.gust.org.pl/pub/Projekty/tlpmgui.

There was a former TL2005 installation on this box, but it was cleanly
uninstalled before starting the TL2007 installation. (No TL-specific
files or environment variables left.)

Setting "TLroot" to the TL2007 root dir wanted does not help.

What else can I do to _force_ tplmgui starting in install mode?

Dirk