\r
Non-standard parameters\r
-----------------------\r
-The AppEnvironment and AppEnvironmentExtra parameters recognise an\r
-additional argument when querying the environment. The following syntax\r
-will print all extra environment variables configured for a service\r
+The AppEnvironment, AppEnvironmentExtra and Environment parameters\r
+recognise an additional argument when querying the environment. The\r
+following syntax will print all extra environment variables configured\r
+for a service\r
\r
nssm get <servicename> AppEnvironmentExtra\r
\r
\r
nssm set <servicename> AppEnvironment CLASSPATH=C:\Classes TEMP=C:\Temp\r
\r
+Alternatively the KEY can be prefixed with a + or - symbol to respectively\r
+add or remove a pair from the block.\r
+\r
+The following two lines set CLASSPATH and TEMP:\r
+\r
+ nssm set <servicename> AppEnvironment CLASSPATH=C:\Classes\r
+ nssm set <servicename> AppEnvironment +TEMP=C:\Temp\r
+\r
+If the key is already present, specifying +KEY will override the value\r
+while preserving the order of keys:\r
+\r
+ nssm set <servicename> AppEnvironment +CLASSPATH=C:\NewClasses\r
+\r
+The following syntax removes a single variable from the block while\r
+leaving any other variables in place.\r
+\r
+ nssm set <servicename> AppEnvironment -TEMP\r
+\r
+Specifying -KEY=VALUE will remove the variable only if the existing\r
+value matches.\r
+\r
+The following syntax would not remove TEMP=C:\Temp\r
+\r
+ nssm set <servicename> AppEnvironment -TEMP=C:\Work\Temporary\r
+\r
+The + and - symbols are valid characters in environment variables.\r
+The syntax :KEY=VALUE is equivalent to KEY=VALUE and can be used to\r
+set variables which start with +/- or to explicitly reset the block in\r
+a script:\r
+\r
+ nssm set <servicename> AppEnvironment :CLASSPATH=C:\Classes\r
+ nssm set <servicename> AppEnvironment +TEMP=C:\Temp\r
+\r
\r
The AppExit parameter requires an additional argument specifying the exit\r
code to get or set. The default action can be specified with the string\r