Get directory of installed .NET runtime: Difference between revisions
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== Issues == | == Issues == | ||
It is difficult to know for sure whether calls to external programs, such as RegAsm.exe, in the example above, really succeeded. I tried redirecting the output of RegAsm.exe to a file, and then opening the file to look for the magic words "Types succesfully registered.", with some success. However, if the target machine is an older version of Windows (NT or 95/98/ME) then redirection behaves differently (i.e. not at all, in my recent experience) meaning you can't reliably test that the RegAsm call succeeded. | |||
[[Category:DLL, OCX, TLB Functions]] | [[Category:DLL, OCX, TLB Functions]] |
Revision as of 12:43, 20 April 2006
Description
Given a .Net version number, this function returns that .Net framework's install directory. This is useful if you intend to call 'RegAsm.exe', or 'GACUtil.exe' on one of your .Net assembly DLLs, since these executables are stored in the directory this function returns.
Parameters
in: version of .Net framework required (eg. "v2.0")
out: directory in which it is installed (eg. "C:\WINNT\Microsoft.NET\Framework\v2.0.50727")
Returns "" if the specified version of the .Net framework does not appear to be installed.
Usage
Section "Install" ; get directory of .NET framework installation Push "v2.0" Call GetDotNetDir Pop $R0 ; .net framework v2.0 installation directory StrCmpS "" $R0 err_dot_net_not_found ; Perform our install ; e.g. use the .Net path in $R0 to call RegAsm.exe SetOutPath $INSTDIR File "MyDll.dll" ExecWait '"$R0\RegAsm.exe" MyDll.dll' Return err_dot_net_not_found: Abort "Aborted: .Net framework not found." SectionEnd
Function
; Given a .NET version number, this function returns that .NET framework's ; install directory. Returns "" if the given .NET version is not installed. ; Params: [version] (eg. "v2.0") ; Return: [dir] (eg. "C:\WINNT\Microsoft.NET\Framework\v2.0.50727") Function GetDotNetDir Exch $R0 ; Set R0 to .net version major Push $R1 Push $R2 ; set R1 to minor version number of the installed .NET runtime EnumRegValue $R1 HKLM \ "Software\Microsoft\.NetFramework\policy\$R0" 0 IfErrors getdotnetdir_err ; set R2 to .NET install dir root ReadRegStr $R2 HKLM \ "Software\Microsoft\.NetFramework" "InstallRoot" IfErrors getdotnetdir_err ; set R0 to the .NET install dir full StrCpy $R0 "$R2$R0.$R1" getdotnetdir_end: Pop $R2 Pop $R1 Exch $R0 ; return .net install dir full Return getdotnetdir_err: StrCpy $R0 "" Goto getdotnetdir_end FunctionEnd
Issues
It is difficult to know for sure whether calls to external programs, such as RegAsm.exe, in the example above, really succeeded. I tried redirecting the output of RegAsm.exe to a file, and then opening the file to look for the magic words "Types succesfully registered.", with some success. However, if the target machine is an older version of Windows (NT or 95/98/ME) then redirection behaves differently (i.e. not at all, in my recent experience) meaning you can't reliably test that the RegAsm call succeeded.