https://bugs.winehq.org/show_bug.cgi?id=42616 --- Comment #2 from Omega Software <development(a)winomega.com> --- Reproduced it again, this time with 1.8.0. I think I found the factors that cause it. Steps to reproduce: 1. Remove ~/.wine and ~/.cache/wine. 2. Start wine directly to run the installer (womega.exe), before creating a prefix. 3. Since you removed Mono and Gecko installer from cache, a dialog asking to download Mono pops up, say yes (I think the same would happen with Gecko, but haven't tried). 4. When Mono download is aproximately at 60%, the installer starts, and at this point the wine prefix is not fully configured yet. The following errors are printed: wineserver: could not save registry branch to system.reg : No such file or directory wineserver: could not save registry branch to userdef.reg : No such file or directory wineserver: could not save registry branch to user.reg : No such file or directory and as a consequence %SystemDrive% cannot be resolved. The problem might not be specific to InnoSetup after all. I expect any program attempting to resolve %SystemDrive would end the same. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.