diff --git a/src/tools/msvc/build.bat b/src/tools/msvc/build.bat
index 4001ac1d0d..171f7498e2 100755
--- a/src/tools/msvc/build.bat
+++ b/src/tools/msvc/build.bat
@@ -3,4 +3,4 @@ REM src/tools/msvc/build.bat
 REM all the logic for this now belongs in build.pl. This file really
 REM only exists so you don't have to type "perl build.pl"
 REM Resist any temptation to add any logic here.
-@perl build.pl %*
+@perl %~dp0/build.pl %*
diff --git a/src/tools/msvc/install.bat b/src/tools/msvc/install.bat
index d03277eff2..d02b80826b 100644
--- a/src/tools/msvc/install.bat
+++ b/src/tools/msvc/install.bat
@@ -3,4 +3,4 @@ REM src/tools/msvc/install.bat
 REM all the logic for this now belongs in install.pl. This file really
 REM only exists so you don't have to type "perl install.pl"
 REM Resist any temptation to add any logic here.
-@perl install.pl %*
+@perl %~dp0/install.pl %*
diff --git a/src/tools/msvc/pgbison.bat b/src/tools/msvc/pgbison.bat
index d976750c9c..dc8ac4a2cf 100755
--- a/src/tools/msvc/pgbison.bat
+++ b/src/tools/msvc/pgbison.bat
@@ -4,4 +4,4 @@ REM src/tools/msvc/pgbison.bat
 REM all the logic for this now belongs in pgbison.pl. This file really
 REM only exists so you don't have to type "perl src/tools/msvc/pgbison.pl"
 REM Resist any temptation to add any logic here.
-@perl src/tools/msvc/pgbison.pl %*
+@perl %~dp0/pgbison.pl %*
diff --git a/src/tools/msvc/pgflex.bat b/src/tools/msvc/pgflex.bat
index 3c7afe9c31..f20834ba9b 100755
--- a/src/tools/msvc/pgflex.bat
+++ b/src/tools/msvc/pgflex.bat
@@ -4,4 +4,4 @@ REM src/tools/msvc/pgflex.bat
 REM all the logic for this now belongs in pgflex.pl. This file really
 REM only exists so you don't have to type "perl src/tools/msvc/pgflex.pl"
 REM Resist any temptation to add any logic here.
-@perl src/tools/msvc/pgflex.pl %*
+@perl %~dp0/pgflex.pl %*
diff --git a/src/tools/msvc/vcregress.bat b/src/tools/msvc/vcregress.bat
index a981d3a6aa..7fba45c1e7 100644
--- a/src/tools/msvc/vcregress.bat
+++ b/src/tools/msvc/vcregress.bat
@@ -3,4 +3,4 @@ REM src/tools/msvc/vcregress.bat
 REM all the logic for this now belongs in vcregress.pl. This file really
 REM only exists so you don't have to type "perl vcregress.pl"
 REM Resist any temptation to add any logic here.
-@perl vcregress.pl %*
+@perl %~dp0/vcregress.pl %*