Save as wishhere.inf:
; ; "Wish Prompt Here" ; ; Copyright 2006 Tom Schmit ; Licensed under the LGPL (http://www.gnu.org/copyleft/lesser.txt ) ; ; Based on "Bash Prompt Here" by Ross Smith. ; Edit the phrase "o:\tcl\bin\wish" as needed.
version signature="$CHICAGO$"
[BashHereInstall] CopyFiles = WishHere.Files.Inf AddReg = WishHere.Reg
[DefaultInstall] CopyFiles = WishHere.Files.Inf AddReg = WishHere.Reg
[DefaultUnInstall] DelFiles = WishHere.Files.Inf DelReg = WishHere.Reg
[SourceDisksNames] 55="Wish Prompt Here","",1
[SourceDisksFiles] WishHere.INF=55
[DestinationDirs] WishHere.Files.Inf = 17
[WishHere.Files.Inf] WishHere.INF
[WishHere.Reg] HKLM,%UDHERE%,DisplayName,,"%WishHereName%" HKLM,%UDHERE%,UninstallString,,"rundll32.exe syssetup.dll,SetupInfObjectInstallAction DefaultUninstall 132 %17%\WishHere.inf" HKCR,Directory\Shell\WishHere,,,"%WishHereAccel%" HKCR,Directory\Shell\WishHere\command,,,"o:\tcl\bin\wish" HKCR,Drive\Shell\WishHere,,,"%WishHereAccel%" HKCR,Drive\Shell\WishHere\command,,,"o:\tcl\bin\wish"
[Strings] WishHereName="Wish Prompt Here" WishHereAccel="&Wish Prompt Here" UDHERE="Software\Microsoft\Windows\CurrentVersion\Uninstall\WishHere"