delete registry values by using a .reg file

[Haynes]

BalloonTips.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"EnableBalloonTips"=dword:00000000

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
"msnmsgr"=-
"Yahoo! Pager"=-

OemPreinstall batch file excerpt:

echo.
echo. Disable Balloon Tips - Remove Messengers from Startup
Start /wait reg import %systemdrive%\OemPreinstall\BalloonTips.reg
echo. done!

When BalloonTips.reg is ran in batch (or command prompt) all of the modifications in the .reg file are applied ith the exception of "Yahoo! Pager"=-

But when the .reg file is ran in Windows (double-clicking the .reg file) all the changes are made and the Yahoo! key is deleted as desired.

My guess is the space in the value "Yahoo! Pager"=- ?

Any comments...?

OemPreinstall.bat.txt

BalloonTips.reg.txt

[Aegis]

Did you check if the registry entry actually existed at that point in time before you tried to delete it? Is it possible that you're deleting a non-existant entry, then installing a program over it that writes the entry?

[Yzöwl]

It has definitely got nothing to do with a space character, but a possibility is the exclamation mark. If your batch file is using delayed expansion the exclamation mark will be an invalid character unless it is escaped (^!).