Is there a command line command for verifying what version of NET is installed

Question

I have set of scripts for doing scripted installs   You can use the scripts on any server 2008 machine   However  I need to check if  NET 3 5 has been installed  before the scripts run  using a dos batch file   Is that possible     I know I can check if a file in the C  WINDOWS Microsoft NET Framework v3 5 exists  but it would be nice to have something a little more reliable     I would like to check if it s actually installed  not just if the dir file exists   Thanks

User · Answer

You mean a DOS command such as below will do the job displaying installed .NET frameworks:

wmic /namespace:\\root\cimv2 path win32_product where "name like '%%.NET%%'" get version

The following may then be displayed:

Version
4.0.30319

WMIC is quite useful once you master using it, much easier than coding WMI in scripts depending on what you want to achieve.

User · Answer

REM Search for the CONFIG file  if this doesn t exit then the user doesn t have the  Net framework 2 0    SET FileName  windir  Microsoft NET Framework v2 0 50727 CONFIG IF EXIST  FileName  GOTO INSTALL DIALER ECHO You currently do not have the Microsoft c   NET Framework 2 0 installed

User · Answer

You mean a DOS command such as below will do the job displaying installed .NET frameworks:

wmic /namespace:\\root\cimv2 path win32_product where "name like '%%.NET%%'" get version

The following may then be displayed:

Version
4.0.30319

WMIC is quite useful once you master using it, much easier than coding WMI in scripts depending on what you want to achieve.

User · Answer

You can write yourself a little console app and use System Environment Version to find out the version  Scott Hanselman gives a blog post about it   Or look in the registry for the installed versions  HKLM Software Microsoft NETFramework Setup NDP

User · Answer

you can have a look to this page for  NET 4   http   www itninja com question batch-script-to-check-and-install-dotnet4-0

User · Answer

you can have a look to this page for  NET 4   http   www itninja com question batch-script-to-check-and-install-dotnet4-0

User · Answer

Since you said you want to know if its actually installed  I think the best way  short of running version specific code   is to check the reassuringly named  Install  registry key  0x1 means yes   C   gt reg query  HKLM SOFTWARE Microsoft NET Framework Setup NDP v3 5   findstr Install     Install     REG DWORD       0x1    InstallPath REG SZ  c  WINNT Microsoft NET Framework v3 5    This also happens to be the  Microsoft Recommended  official method   WMI is another possibility  but seems impractical  Slow  Takes 2 min on my C2D  SSD   Maybe it works better on your server   C   gt wmic product where  Name like  Microsoft  Net    get Name  Version  Name                                                Version Microsoft  NET Compact Framework 1 0 SP3 Developer  1 0 4292 Microsoft  NET Framework 3 0 Service Pack 2         3 2 30729 Microsoft  NET Framework 3 5 SP1                    3 5 30729 Microsoft  NET Compact Framework 2 0                2 0 5238 Microsoft  NET Framework 4 Client Profile           4 0 30319 Microsoft  NET Framework 4 Multi-Targeting Pack     4 0 30319 Microsoft  NET Framework 2 0 Service Pack 2         2 2 30729 Microsoft  NET Framework 1 1                        1 1 4322 Microsoft  NET Framework 4 Extended                 4 0 30319  C   gt wmic product where  name like  Microsoft  N   and version  3 5 30729   get name  Name   Microsoft  NET Framework 3 5 SP1   Other than these I think the only way to be 100  sure is to actually run a simple console app compiled targeting your framework version  Personally  I consider this unnecessary and trust the registry method just fine   Finally  you could set up an intranet test site which is reachable from your server and sniffs the User Agent to determine  NET versions  But that s not a batch file solution of course  Also see doc here

User · Answer

you can check installed c  compilers and the printed version of the  net    echo off  for  r   SystemRoot  Microsoft NET Framework       in    csc exe   do       set  l       for  f  skip 1 tokens 2 delims k      in             do           if not defined l               echo Installed                  set l                        echo latest installed  NET  l    the csc exe does not have a -version switch but it prints the  net version in its logo  You can also try with msbuild exe but  net framework 1   does not have msbuild

User · Answer

REM Search for the CONFIG file  if this doesn t exit then the user doesn t have the  Net framework 2 0    SET FileName  windir  Microsoft NET Framework v2 0 50727 CONFIG IF EXIST  FileName  GOTO INSTALL DIALER ECHO You currently do not have the Microsoft c   NET Framework 2 0 installed

User · Answer

If you re going to run a little console app  you may as well install clrver exe from the  NET SDK   I don t think you can get cleaner than that   This isn t my answer  but I happen to agree   I found it here

User · Answer

This is working for me    echo off SETLOCAL ENABLEEXTENSIONS  echo Verify  Net Framework Version  for  f  delims     I in   dir  B  A D  windir  Microsoft NET Framework   do       for  f  usebackq tokens 1 3 delims      A in   reg query  HKLM SOFTWARE Microsoft NET Framework Setup NDP   I  2  gt nul    findstr Install   do           if   A  Install               if   B  0x1                   echo   I                                  echo Do you see version v4 5 2 or greater in the list   pause  ENDLOCAL    The 2  gt nul redirects errors to vapor

User · Answer

Unfortunately the best way would be to check for that directory   I am not sure what you mean but  actually installed  as  NET 3 5 uses the same CLR as  NET 3 0 and  NET 2 0 so all new functionality is wrapped up in new assemblies that live in that directory   Basically  if the directory is there then 3 5 is installed   Only thing I would add is to find the dir this way for maximum flexibility    windir  Microsoft NET Framework v3 5

User · Answer

If you re going to run a little console app  you may as well install clrver exe from the  NET SDK   I don t think you can get cleaner than that   This isn t my answer  but I happen to agree   I found it here

User · Answer

This is working for me    echo off SETLOCAL ENABLEEXTENSIONS  echo Verify  Net Framework Version  for  f  delims     I in   dir  B  A D  windir  Microsoft NET Framework   do       for  f  usebackq tokens 1 3 delims      A in   reg query  HKLM SOFTWARE Microsoft NET Framework Setup NDP   I  2  gt nul    findstr Install   do           if   A  Install               if   B  0x1                   echo   I                                  echo Do you see version v4 5 2 or greater in the list   pause  ENDLOCAL    The 2  gt nul redirects errors to vapor

User · Answer

You can write yourself a little console app and use System Environment Version to find out the version  Scott Hanselman gives a blog post about it   Or look in the registry for the installed versions  HKLM Software Microsoft NETFramework Setup NDP

User · Answer

You can write yourself a little console app and use System Environment Version to find out the version  Scott Hanselman gives a blog post about it   Or look in the registry for the installed versions  HKLM Software Microsoft NETFramework Setup NDP

User · Answer

Since you said you want to know if its actually installed  I think the best way  short of running version specific code   is to check the reassuringly named  Install  registry key  0x1 means yes   C   gt reg query  HKLM SOFTWARE Microsoft NET Framework Setup NDP v3 5   findstr Install     Install     REG DWORD       0x1    InstallPath REG SZ  c  WINNT Microsoft NET Framework v3 5    This also happens to be the  Microsoft Recommended  official method   WMI is another possibility  but seems impractical  Slow  Takes 2 min on my C2D  SSD   Maybe it works better on your server   C   gt wmic product where  Name like  Microsoft  Net    get Name  Version  Name                                                Version Microsoft  NET Compact Framework 1 0 SP3 Developer  1 0 4292 Microsoft  NET Framework 3 0 Service Pack 2         3 2 30729 Microsoft  NET Framework 3 5 SP1                    3 5 30729 Microsoft  NET Compact Framework 2 0                2 0 5238 Microsoft  NET Framework 4 Client Profile           4 0 30319 Microsoft  NET Framework 4 Multi-Targeting Pack     4 0 30319 Microsoft  NET Framework 2 0 Service Pack 2         2 2 30729 Microsoft  NET Framework 1 1                        1 1 4322 Microsoft  NET Framework 4 Extended                 4 0 30319  C   gt wmic product where  name like  Microsoft  N   and version  3 5 30729   get name  Name   Microsoft  NET Framework 3 5 SP1   Other than these I think the only way to be 100  sure is to actually run a simple console app compiled targeting your framework version  Personally  I consider this unnecessary and trust the registry method just fine   Finally  you could set up an intranet test site which is reachable from your server and sniffs the User Agent to determine  NET versions  But that s not a batch file solution of course  Also see doc here

User · Answer

Unfortunately the best way would be to check for that directory   I am not sure what you mean but  actually installed  as  NET 3 5 uses the same CLR as  NET 3 0 and  NET 2 0 so all new functionality is wrapped up in new assemblies that live in that directory   Basically  if the directory is there then 3 5 is installed   Only thing I would add is to find the dir this way for maximum flexibility    windir  Microsoft NET Framework v3 5

User · Answer

Unfortunately the best way would be to check for that directory   I am not sure what you mean but  actually installed  as  NET 3 5 uses the same CLR as  NET 3 0 and  NET 2 0 so all new functionality is wrapped up in new assemblies that live in that directory   Basically  if the directory is there then 3 5 is installed   Only thing I would add is to find the dir this way for maximum flexibility    windir  Microsoft NET Framework v3 5

User · Answer

Unfortunately the best way would be to check for that directory   I am not sure what you mean but  actually installed  as  NET 3 5 uses the same CLR as  NET 3 0 and  NET 2 0 so all new functionality is wrapped up in new assemblies that live in that directory   Basically  if the directory is there then 3 5 is installed   Only thing I would add is to find the dir this way for maximum flexibility    windir  Microsoft NET Framework v3 5

User · Answer

you can check installed c  compilers and the printed version of the  net    echo off  for  r   SystemRoot  Microsoft NET Framework       in    csc exe   do       set  l       for  f  skip 1 tokens 2 delims k      in             do           if not defined l               echo Installed                  set l                        echo latest installed  NET  l    the csc exe does not have a -version switch but it prints the  net version in its logo  You can also try with msbuild exe but  net framework 1   does not have msbuild

User · Answer

You can write yourself a little console app and use System Environment Version to find out the version  Scott Hanselman gives a blog post about it   Or look in the registry for the installed versions  HKLM Software Microsoft NETFramework Setup NDP

[.net] Is there a command line command for verifying what version of .NET is installed

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