diff --git a/src/NAppUpdate.Framework/Conditions/FileChecksumCondition.cs b/src/NAppUpdate.Framework/Conditions/FileChecksumCondition.cs
index 7311ef23..488a07c9 100644
--- a/src/NAppUpdate.Framework/Conditions/FileChecksumCondition.cs
+++ b/src/NAppUpdate.Framework/Conditions/FileChecksumCondition.cs
@@ -28,13 +28,15 @@ public bool IsMet(IUpdateTask task)
 			if (string.IsNullOrEmpty(localPath))
 				return true;
 
+			var fullPath = FileSystem.GetFullPath(localPath);
+
 			// if the local file does not exist, checksums don't match vacuously
-			if (!File.Exists(localPath))
+			if (!File.Exists(fullPath))
 				return false;
 
 			if ("sha256".Equals(ChecksumType, StringComparison.InvariantCultureIgnoreCase))
 			{
-				var sha256 = FileChecksum.GetSHA256Checksum(localPath);
+				var sha256 = FileChecksum.GetSHA256Checksum(fullPath);
 				if (!string.IsNullOrEmpty(sha256) && sha256.Equals(Checksum, StringComparison.InvariantCultureIgnoreCase))
 					return true;
 			}
diff --git a/src/NAppUpdate.Framework/Conditions/FileDateCondition.cs b/src/NAppUpdate.Framework/Conditions/FileDateCondition.cs
index de3394ec..e202d515 100644
--- a/src/NAppUpdate.Framework/Conditions/FileDateCondition.cs
+++ b/src/NAppUpdate.Framework/Conditions/FileDateCondition.cs
@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using NAppUpdate.Framework.Common;
+using NAppUpdate.Framework.Utils;
 
 namespace NAppUpdate.Framework.Conditions
 {
@@ -36,13 +37,15 @@ public bool IsMet(Tasks.IUpdateTask task)
 			if (string.IsNullOrEmpty(localPath))
 				return true;
 
+			var fullPath = FileSystem.GetFullPath(localPath);
+
 			// if the file doesn't exist it has a null timestamp, and therefore the condition result depends on the ComparisonType
-			if (!File.Exists(localPath))
+			if (!File.Exists(fullPath))
 				return ComparisonType.Equals("older", StringComparison.InvariantCultureIgnoreCase);
 
 			// File timestamps seem to be off by a little bit (conversion rounding?), so the code below
 			// gets around that
-			var dt = File.GetLastWriteTime(localPath);
+			var dt = File.GetLastWriteTime(fullPath);
 			var localPlus = dt.AddSeconds(2).ToFileTimeUtc();
 			var localMinus = dt.AddSeconds(-2).ToFileTimeUtc();
 			var remoteFileDateTime = Timestamp.ToFileTimeUtc();
diff --git a/src/NAppUpdate.Framework/Conditions/FileExistsCondition.cs b/src/NAppUpdate.Framework/Conditions/FileExistsCondition.cs
index 27932023..9ed139c2 100644
--- a/src/NAppUpdate.Framework/Conditions/FileExistsCondition.cs
+++ b/src/NAppUpdate.Framework/Conditions/FileExistsCondition.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using NAppUpdate.Framework.Common;
+using NAppUpdate.Framework.Utils;
 
 namespace NAppUpdate.Framework.Conditions
 {
@@ -21,8 +22,8 @@ public bool IsMet(Tasks.IUpdateTask task)
 			string localPath = !string.IsNullOrEmpty(LocalPath) ? LocalPath : Utils.Reflection.GetNauAttribute(task, "LocalPath") as string;
 			if (string.IsNullOrEmpty(localPath))
 				return true;
-
-			return File.Exists(localPath);
+			var fullPath = FileSystem.GetFullPath(localPath);
+			return File.Exists(fullPath);
 		}
 	}
 }
diff --git a/src/NAppUpdate.Framework/Conditions/FileSizeCondition.cs b/src/NAppUpdate.Framework/Conditions/FileSizeCondition.cs
index 6b43837d..7bd4fef5 100644
--- a/src/NAppUpdate.Framework/Conditions/FileSizeCondition.cs
+++ b/src/NAppUpdate.Framework/Conditions/FileSizeCondition.cs
@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using NAppUpdate.Framework.Common;
+using NAppUpdate.Framework.Utils;
 
 namespace NAppUpdate.Framework.Conditions
 {
@@ -31,10 +32,12 @@ public bool IsMet(Tasks.IUpdateTask task)
 			if (string.IsNullOrEmpty(localPath))
 				return true;
 
+			var fullPath = FileSystem.GetFullPath(localPath);
+
 			long localFileSize = 0;
-			if (File.Exists(localPath))
+			if (File.Exists(fullPath))
 			{
-				var fi = new FileInfo(localPath);
+				var fi = new FileInfo(fullPath);
 				localFileSize = fi.Length;
 			}
 
diff --git a/src/NAppUpdate.Framework/Conditions/FileVersionCondition.cs b/src/NAppUpdate.Framework/Conditions/FileVersionCondition.cs
index b33a74ff..c8ec69dd 100644
--- a/src/NAppUpdate.Framework/Conditions/FileVersionCondition.cs
+++ b/src/NAppUpdate.Framework/Conditions/FileVersionCondition.cs
@@ -2,6 +2,7 @@
 using System.IO;
 using System.Diagnostics;
 using NAppUpdate.Framework.Common;
+using NAppUpdate.Framework.Utils;
 
 namespace NAppUpdate.Framework.Conditions
 {
@@ -30,11 +31,13 @@ public bool IsMet(Tasks.IUpdateTask task)
 			if (string.IsNullOrEmpty(localPath))
 				return true;
 
+			var fullPath = FileSystem.GetFullPath(localPath);
+
 			// if the file doesn't exist it has a null version, and therefore the condition result depends on the ComparisonType
-			if (!File.Exists(localPath))
+			if (!File.Exists(fullPath))
 				return ComparisonType.Equals("below", StringComparison.InvariantCultureIgnoreCase);
 
-			var versionInfo = FileVersionInfo.GetVersionInfo(localPath);
+			var versionInfo = FileVersionInfo.GetVersionInfo(fullPath);
 			if (versionInfo.FileVersion == null) return true; // perform the update if no version info is found
 
 			var localVersion = new Version(versionInfo.FileMajorPart, versionInfo.FileMinorPart, versionInfo.FileBuildPart, versionInfo.FilePrivatePart);
diff --git a/src/NAppUpdate.Framework/Utils/FileSystem.cs b/src/NAppUpdate.Framework/Utils/FileSystem.cs
index e1d1a777..550cb91a 100644
--- a/src/NAppUpdate.Framework/Utils/FileSystem.cs
+++ b/src/NAppUpdate.Framework/Utils/FileSystem.cs
@@ -99,21 +99,27 @@ public static bool IsFileLocked(FileInfo file)
 			return false;
 		}
 
-		public static void CopyAccessControl(FileInfo src, FileInfo dst)
-		{
-			FileSecurity fs = src.GetAccessControl();
-
-			bool hasInheritanceRules = fs.GetAccessRules(false, true, typeof(SecurityIdentifier)).Count > 0;
-			if (hasInheritanceRules)
-			{
-				fs.SetAccessRuleProtection(false, false);
-			}
-			else
-			{
-				fs.SetAccessRuleProtection(true, true);
-			}
-
-			dst.SetAccessControl(fs);
+		public static void CopyAccessControl(FileInfo src, FileInfo dst)
+		{
+			FileSecurity fs = src.GetAccessControl();
+
+			bool hasInheritanceRules = fs.GetAccessRules(false, true, typeof(SecurityIdentifier)).Count > 0;
+			if (hasInheritanceRules)
+			{
+				fs.SetAccessRuleProtection(false, false);
+			}
+			else
+			{
+				fs.SetAccessRuleProtection(true, true);
+			}
+
+			dst.SetAccessControl(fs);
+		}
+
+		public static string GetFullPath(string localPath)
+		{
+			var currentDirectory = AppDomain.CurrentDomain.BaseDirectory;
+			return Path.Combine(currentDirectory, localPath);
 		}
 	}
 }