here's the code:

wmpshelloff.bat
Code: [Select]if %0:~-5% == "f.bat" (

rem Unregistering WMP SHELL Integration
regsvr32 /u wmpshell.dll
set ren=%0:on=off%
)else (
echo no
rem REGISTERING WMP SHELL Integration
regsvr32 wmpshell.dll
set ren=%0:off=on%
)
RENAME %0 %ren%WHY DOES IT NOT WORK!?What is displayed when you run the batch ? are there error messages ?
Can you paste them in here

GrahamCode: [Select]C:\dos>wmpshelloff.bat

C:\dos>if wmpshelloff.bat:~-5 == "f.bat" (
rem Unregistering WMP SHELL Integration
regsvr32 /u wmpshell.dll
set ren=wmpshelloff.bat:on=off
) else (
echo no
rem Registering WMP SHELL Integration
regsvr32 wmpshell.dll
set ren=wmpshelloff.bat:off=on
)
no

C:\dos>rename wmpshelloff.bat wmpshelloff.bat:off=on
The SYNTAX of the command is incorrect.

C:\dos>Stramge, variable expansion seems off yet it is set to on from the registry...
Does it work for You? It's supposed to unregister wmpshell.dll, I'm USING XP SP2 BTWThe %0 parameter does not include the file extension which makes your if statement shaky. The following SNIPPET does what you need but the cmd processor does not like executing files to disappear; something to do with handles and all that .

Code: [Select]setlocal enabledelayedexpansion
set pgm=%0
if %0:~-1% == "f" (

rem Unregistering WMP SHELL Integration
regsvr32 /u wmpshell.dll
set ren=!pgm:on=off!
)else (
echo no
rem Registering WMP SHELL Integration
regsvr32 wmpshell.dll
set ren=!pgm:off=on!
)
rename %0.bat %ren%.bat

Thanks for the help all
I gave up using %0 at all because if you open it from the gui it brakes down...
i devised an easier way, albeit it rquires user input
Code: [Select]@echo off

echo Hit a key to:
set /p wmpshell=[R]egister or [U]nregister Wmp shell:
if not '%wmpshell%'=='' set choice=%choice:~0,1%
rem Unregistering WMP SHELL Integration
if '%wmpshell%'=='U' regsvr32 /u wmpshell.dll
if '%wmpshell%'=='u' regsvr32 /u wmpshell.dll
rem Registering WMP SHELL Integration
if '%wmpshell%'=='R' regsvr32 wmpshell.dll
if '%wmpshell%'=='r' regsvr32 wmpshell.dll