Hello Uwe, Uwe Stöhr schrieb am 28.06.2007:
The Update installer version allows you to update your existing LyX installation to the latest version. To use this installer you must have my last development snaphot LyX 1.5rc1-31-05-2007installed.
I have this version installed, but nevertheless I get an error when opening the .exe. I am working on WinXP with MikTeX 2.5 installed.
Regards, Dominik.-