It is possible to install any 32 bit version of JIRA prior to JIRA 7 on Windows 7 64 bit, but installing 32 bit JIRA 7 on Windows 64 bit ends up with issues.
The root cause is, installer tries to run JIRA with incorrect version of tomcat binary
Windows 7 64 bit
Install JIRA 7 32 bit on Windows 7 64 bit
JIRA 7 32 bit should run and work perfectly
The installation is successful, but navigating to JIRA instance URL does not return anything.
Also there won't be any JIRA Home directory.
User is not able to run the JIRA Service.
in file <install-dir>\bin\service.bat locate line:
and replace it with (remove x64):
in file bin/check-java.bat remove quotes around %_EXECJAVA%