Title

Common MSI Conditions

Summary

This article provides some of the most common conditions used in MSI projects for custom actions, features, components, etc.

Synopsis

This article gives you some of the most common conditions used in MSI projects for custom actions, features, components, etc. It also serves as a quick reference for most of what you need to know about Conditional Statement Syntax.

Discussion

Common Conditions

Sequencing	Condition
First-time installation	Not Installed
Uninstallation	REMOVE~="ALL"
AutoRepair	REINSTALLMODE=pocmus
Uninstallation from Major Upgrade	UPGRADINGPRODUCTCODE
Minor Upgrade via Setup.exe	IS_MINOR_UPGRADE
Minor Upgrade via command line	REINSTALL~="ALL" And REINSTALLMODE><"v"
Patch	PATCH
Patch Uninstallation	MSIPATCHREMOVE
Modify	Installed And Not REINSTALL And Not REMOVE~="ALL"
Repair from ARP	REINSTALL~="ALL" And REINSTALLMODE="ocmusv"
Repair from right-click of MSI	REINSTALL~="ALL" And REINSTALLMODE="pecms"
Repair from Maintenance dialog	REINSTALL And REINSTALLMODE="omus"
Maintenance	Installed And Not RESUME And Not Preselected And Not PATCH
64 bit OS	VersionNT64
32 bit OS	Not VersionNT64
Running from Admin Image	IsAdminPackage
Silent Install (UI Sequence not run)	UILevel <= 3
Install running from UNC Path	SourceDir >< "\\"
Windows XP	VersionNT = 501
Windows XP (64-bit)	VersionNT64 = 502 And MsiNTProductType = 1
Windows Server 2003	VersionNT = 502 And MsiNTProductType = 3
Windows Vista/Server 2008	VersionNT = 600
Windows 7/Server 2008 R2	VersionNT = 601
Windows 8/Server 2012	VersionNT = 602
Windows 8.1 & 10/Server 2012 R2 & 2016	VersionNT = 603
Feature installing or installed	&FeatName = 3 Or (&FeatName <> 2 And !FeatName=3)
Component Reinstalling	?ComponentName=$ComponentName
At least 2 GB of RAM	PhysicalMemory >= 2048
MSI running with elevated privileges	MsiRunningElevated
Core OS Language is English	SystemLanguageID = 1033

Prefix/State Operators

Operator	Meaning
$ComponentName	Component action state
?ComponentName	Component install state
&FeatureName	Feature action state
!FeatureName	Feature install state
%EnvVar	Environment variable value

State Values

State	Value
INSTALLSTATE_UNKNOWN	-1
INSTALLSTATE_ADVERTISED	1
INSTALLSTATE_ABSENT	2
INSTALLSTATE_LOCAL	3
INSTALLSTATE_SOURCE	4

Substring Operators

Operator	Meaning
><	Contains
<<	Starts with
>>	Ends with

Bitwise Operators

Operator	Meaning
><	Bitwise contains (any bits in common)
<<	Bitwise starts with (high 16 bits)
>>	bitwise ends with (low 16 bits

Logical Operators

Operator	Meaning
Not	Inverts state of following item
And	TRUE if both terms are TRUE
Or	TRUE if either or both terms are TRUE
Xor	TRUE if either but not both are TRUE
Eqv	TRUE if both are TRUE or both are FALSE
Imp	TRUE if left term is FALSE or right is TRUE

Comparison Operators

Operator	Meaning
=	Equals
<>	Not equals
>	Greater than
>=	Greater than or equals
<	Less than
<=	Less than or equals
~=	Case-insensitive equals

Additional Information

For more information on built-in Windows Installer Properties, please see the MSDN article Property Reference.
These charts are also available as a PDF.

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