Delete $R0 not work

hello everyone:

I got a question which puzzled me a long time:

I use

Delete $R0

to delete the uninstall.exe file, in which R0 = "C:\Program Files\DPtech\TAC\uninstall.exe"
but to my surprise, it cannot work.

but when i change the code to

 Delete "C:\Program Files\DPtech\TAC\uninstall.exe"

It works


can somebody tell me why the usage like Delete $R0 can not work ?
I read the doc, and thought about it for a really long time.
and i urge to know why. thx a lot

The path is probably wrong. You could verify this with Process Monitor.

StrCpy $0 "c:\foo"
Delete $0

should be the same as

Delete "c:\foo"

I got the $R0 form Registry:

ReadRegStr $R0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\TAC" "UninstallString"

and R0 = "C:\Program Files\DPtech\TAC\uninstall.exe"
I show it in a MessageBox and checked it.

but when i test the existence by IfFileExists, not-exists returns while the file is there actually.

Remove the quotes if the path is quoted...

the content of R0 contians quotes (R0 = "C:\Program Files\DPtech\TAC\uninstall.exe")
do you means when using

Delete $R0

equals the usage of

Delete ""C:\Program Files\DPtech\TAC\uninstall.exe""

?

so i should remove the quote before using R0 ?

Yes you need to remove the quotes.



Stu